Driveshaft/u-joint/rear end question?!??
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Forum Name: General Automotive Technical Discussion
Forum Description: Technical Automotive discussion of anything not specific to mid-size Ford/Merc
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=10470
Printed Date: 19-April-2024 at 11:54PM
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Topic: Driveshaft/u-joint/rear end question?!??
Posted By: Grantorinosport351
Subject: Driveshaft/u-joint/rear end question?!??
Date Posted: 22-February-2014 at 6:11PM
Ok so I forgot to post this on the falcon thread, but I'm moving and I decided to drive the falcon to the new house (bout 8 miles) But it drove great until about a half mile down the road I felt some vibration naw was like oh sh***  lol long story short it fell out and towed it the rest of the way......so looking at it I found out why...the u joint went over the little tracks that hold the sides of the u joint in place, because the u-joint/driveshaft is one of our torino driveshafts that I cut it to fit my falcon and the u-joint is bigger than the yoke. (Didn't realize and learned it the hard way) so my question is, what do I do here? I pulled the yoke off of my 9 inch, will that fit the rear end I have in the falcon? I tried pulling the one off of the falcon but IT WOULD NOT BUDGE. So will that fit if I get that off, can I get a u-joint that will fit my drive shaft and the smaller rear? I would have used the falcons driveshaft but the front u joint wouldnt fit my tranny, could I have gotten a u joint that would have fit my tranny and that driveshaft??? PLEASE HELP!------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Replies:
Posted By: californiajohnny
Date Posted: 22-February-2014 at 6:23PM
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first, are you sure that the u joint is too wide, sometimes if you remove the caps a needle bearing can fall down on the bottom of the cap and it won't side on far enough (making it too wide) second you may be able to get a special u joint that is different between caps (size, etc.) i know that for my torino there were 2 different sizes of u joints available. i'd take both u joints with you to the parts store and they could check and measure to see if one is available, there may be different yokes for the diff that could be changed, i'm not sure, may randy or somebody else may know on that part? ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 6:46PM
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Ok, this is confusing me, I'm under the car right now and the u joint thT I recently bought fits the rear end but I'm pretty sure it won't fit the drive shaft ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 22-February-2014 at 7:06PM
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are the caps all the way onto the u joint? look closly at the rubber seals, are they touching the center of the u joint all the way, or is there a small gap? and is the u joint the right width measuring across the the caps (total width? now measure the width of the ujoint that did fit the drive shaft is it the same? or shorter or wider? ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 7:10PM
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Yes, they are all the way on, the one that is on the driveshaft is about a quarter inch wider. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 22-February-2014 at 7:13PM
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I tried a couple times but I don't understand what the exact issue is there's umpteen bajillion different U-joints, they don't all have the same size caps or width dimensions on both sides of the 'cross' to walk into a parts house & come out with the right U-joint takes a little bit of knowledge & some careful measuring. there are 3 basic 'series' that are popular in the auto world, 1310 is smaller width-wise than 1330 & 1350. then there are different diameter caps within the 3 series, and like I said earlier they're not always all 4 the same on one joint %20" rel="nofollow - http://driveshaftspecialist.com/HTML%20Measure/UJ%20ID%20Guide.html a) you need to know the series of the trans yoke, and the diameter of the caps needed in all 4 positions on that joint b) you need to identify the series of the joints needed for the driveshaft, both ends, and the diameter of the caps on each end c) then you need to know the series of the differential flange and the diameter of each cap needed there d) you need to know the retention style of every 'cross' or yoke; trans yoke, front of shaft, rear of shaft, dif flange draw a cheesy sketch, measure & write everything down with arrows pointing to exactly what on the sketch is what size and bring it with you to the store. and bring you caliper to make sure you're getting what you need, parts get shuffled on the counter from guys trying to find a magic part, they get back into the wrong boxes, measure what you're buying! yes it can be VERY  confusing! it's possible to have several different combos on a project car ------------- 72 GT Ute |
Posted By: californiajohnny
Date Posted: 22-February-2014 at 7:23PM
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yes! what max said^^^ 100%, it sounds like you're using the larger u joint shaft and the diff uses the smaller u joint, you said 1/4" wider so that would be my guess ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 7:31PM
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Ok, the diff is like 1/4 inch shorter than the yoke from my torinos rear. (Didn't measure just guessing, it's dark out and no garage and rocks hurt!) the u joint on the shaft fits my torinos rear. The u joint that I bought fits my falcons rear but not the shaft ( too narrow for the shaft) (shafts joint is too wide for the rear) just clearing it up. And thanks for you guys helping! ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 7:33PM
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Yes basically what you said john but complicated lol. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 7:39PM
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So I can't just swap the yokes out? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 22-February-2014 at 7:43PM
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that would take more / different knowledge & measuring wouldn't it just be easier to get the right U-joint ? you know the pinion flange nut sets the preload on the pinion bearings... ? ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 7:44PM
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Do they make one that will fith the bigger shaft and smaller diff? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 22-February-2014 at 7:46PM
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my guess is Yes ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 7:48PM
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Soo, I'll just go to the store with both u joints and pray to the auto gods that they have one to my needs? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 22-February-2014 at 7:56PM
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IDK on the yoke? maybe, BUT what max said about the BEARING PRELOAD!!! tricky if you tighten too much it will cause more crush on the spacer between the pinion shaft bearings causing the pinion shaft to run further away from the ring gear (been there! that's why i dont mess with setting up diff gears or mess with rebuilding manual trannys) ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 8:10PM
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Ok, I'll go to the store with both an hopefully get what I need, thanks guys! ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 22-February-2014 at 8:23PM
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the way I see it you can bring the trans yoke & the driveshaft with you, that leaves the dif flange up to interpretation IDK if you missed my post up above where I suggested that it might take some measuring? but I would measure that dif flange & know what I need if I wanted it to work  ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 8:31PM
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I saw it, sorry I didn't write a reply to it. Trans yoke? You mean just the whole driveshaft right? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 22-February-2014 at 8:53PM
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I think I'm starting to understand what you have goin on over there, the only issue is the fit of the U joint in the dif flange... ? so yes, take the driveshaft that has the trans slip yoke attached to it with you along with a decent measurement of the dif flange sounds to me from here that you need a 1330/1310 joint but don't take my word for it Measure The Dif Flange ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 8:57PM
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Thanks, yes, and the new u joint that I just bought fits the diff flange perfectly, but not the shaft and the one on the shaft is too big for the diff flange. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 9:31PM
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So you think I need a 1330/1310? Are those like manufacturing numbers for u joints? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 22-February-2014 at 9:51PM
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http://driveshaftspecialist.com/HTML%20Measure/UJ%20ID%20Guide.html" rel="nofollow - click on this for much good info I'm not saying this is the correct joint you need, just an example the link above doesn't even cover adapter joints like this one http://www.amazon.com/1310-1330-adapter-U-Joint/dp/B0078UAGT0" rel="nofollow - 1310 / 1330 joint ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 22-February-2014 at 9:58PM
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Thanks! But do you think they make custom ones? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Big Bird
Date Posted: 23-February-2014 at 4:45AM
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There are hybrid u-joints available that will hook you up. take the U-joint that fits the driveshaft and the u-joint that fits the diff yoke with you and they can figure out what you need. you may need smarter heads than at autozone/Advance/Oh-really. Not a big deal at a driveshaft shop at all. ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 10:16AM
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Awesome! Thanks guys. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 10:18AM
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So um is there a seal that goes inbetween the yoke and the diff? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 23-February-2014 at 10:21AM
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is/was there a rubber coating on the back of the pinion nut? sometimes even new nuts leak through the threads, some guys use a little RTV maybe Loctite has a thread locker/sealer product that would be better than just RTV the trick now is to snug that nut up enough that it's tight w/o smashing the crush collar any more than it is, that's why I'd use a threadlocker with less torque than spec calls for ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 10:30AM
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I'm not sure but I'll prolly get some stream sealer or locktight but yeah I've got a small leak goin on there from my attempt to get the yoke out....hope nothin got f'd up.. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 23-February-2014 at 10:33AM
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there is about a 2 1/2" seal in the front of the 3rd member housing that rides against the outer edge of the yoke. what max is referring to is sealing the pinion threads behind the nut (not a bad idea!) don't you have the driveline from the falcon? i'd rather redo a drive line that fits the diff and just cut and change the front slip yoke, than mess with the pinion yoke (preload issues) just my 2 cents! ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 10:40AM
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I do, but with my motor and tranny, it would have had to be cut too, and it was a lot thinner, so I went with the one that already fit my tranny, and at the time I thought fit the rear end too... ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 10:43AM
Ok, so I tried to take it off, it didn't work, so do I just tighten that nut back down or is it supposed to be torqued?.....I'm a little scared  lol------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Big Bird
Date Posted: 23-February-2014 at 10:49AM
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It would be better to just get a hybrid u-joint. They are not uncommon. If you take the yoke off the diff you will mess up the pinion preload and probably the pinion seal. The example that Rockatansky gave above is a 1310-1330. this is a u-joint that is a 1310 on one plane of the "cross" and a 1330 on the other. That may not be the correct example for your car, but all you need to do is find out which u-joints you have already. these are NOT expensive. Re-building your differential because the pinion was leaking and ran dry or the preload was too tight or loose and ate the bearings is a real possibility. If you haven't taken the nut/yoke off the pinion, DON'T! You don't need to, and it's more trouble than it's worth. If you have a driveshaft that engages the trans yoke properly, it's no big deal to use one hybrid joint. (just my 2 cents) ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 10:53AM
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Ok, thanks, but I did take the nut off... ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 23-February-2014 at 12:36PM
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randy is totally right!!! i've gotten lucky sometimes, sometimes not so good!, but since you did and you said you messed up the seal, you might as well put in a new seal then put the yoke back on, it's kid of a matter of feel as far as retightening, the torque specs are for new bearings and preload, so don't use them, i would guess about maybe 30 to 50 foot lbs at the most, you just want the nut just tight enough. ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 23-February-2014 at 12:51PM
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Ok well I put the nut back on and got it pretty snug but not too tight, hopefully I didn't mess up the seal and it was leaking cuz it was a lil loose. But as soon as I can I'll go to autozone and check on that u joint. But I think I might be able to get a 9 inch rear end after next week so that might solve everything. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Big Bird
Date Posted: 23-February-2014 at 12:57PM
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Well, do not tap/bang/hammer/pry/beat against/on the end of the pinion or yoke. The "right" thing to do would be use a puller to remove the yoke, replace the seal and try to get the yoke on and nut tight. Without pulling the pumpkin, I don't know how to get preload right. Cross your fingers. Say your prayers. Maybe sacrifice a Chrysler or something... ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: californiajohnny
Date Posted: 23-February-2014 at 1:29PM
sacrifice a chrysler   ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Rockatansky
Date Posted: 23-February-2014 at 2:29PM
the guys that do it all day every day use their big honkin 1/2" impact on the pinion nut & lightly feel the preload as the hammer pounds away on it. gotta figure an existing assy with miles on it can stand another couple thou of crush to get back to specified preload? I used this beauty to set up my manual steering box, an inch/pound beam style from an online bicycle outfit. but then you'd have to pull the pinion bearing housing out of the carrier to get a reading on just the pinion bearings  ------------- 72 GT Ute |
Big Bird wrote:Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 1:48PM
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Ok, well today I bought my 411 posi 9 inch, and it has the same diff flange as the torino had, so problem solved, and thanks to all of those who helped, but I do have to fix a small leak where the diff Lange is, and I heard if you just take the diff flange out to replace the seal that u won't mess up the bearing preload?? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 03-March-2014 at 3:04PM
 didn't we just go through all this stuff???^^^ or do you mean the large round gasket between the 3rd member and the diff housing?------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 3:09PM
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The one between the flange and the 3rd member. You guys were saying that it would mess up the bearing preload, but the guy I bought it from said that it wouldn't. So will pulling the flange out mess it up (just to replace that gasket) ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 03-March-2014 at 4:05PM
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oh you mean the smaller 5 bolt gasket? never had one of those apart! (you might be ok) IDK ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 4:19PM
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The guy said there is a gasket under that flange, he said you just have to take that one bolt off and pull the flange? http://s1316.photobucket.com/user/grantorinosport351/media/image_zps7c6cae94.jpg.html" rel="nofollow">  Idk if you can see wher the fluid is coming out of. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 03-March-2014 at 4:37PM
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1 bolt???? the nut holding the yoke on? or the gasket between the small housing and the 3rd member housing (with the visor over the yoke part?) that part has like 5 bolts around it ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 4:41PM
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Yes the one bolt holding the yoke on. He said that there is a gasket behind the yoke ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 03-March-2014 at 4:53PM
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there is a seal in there, the outer edge of the yoke rides on the inside lip of the seal ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 4:55PM
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Ok, do you by any chance know what that seal would be called? And taking the yoke of won't effect the bearing preload right? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 03-March-2014 at 5:15PM
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pinion shaft seal, preload-- that's the trick, impact the nut off, pull the yoke remove the seal (pressed in ***(before you destroy the seal, wipe it off good , write down any and all #'s molded into the rubber, look good they are small, save that for future reference! like ordering it !!) remove seal , tap in new one , tricky to get started, work around evenly and gently till its all the way in equally , then slide yoke back on, put nut and washer back on, snug nut back up (TRICKY PART!!!) i do it with my impact gun but it's more of a "feel" it's impossible to describe! if you know and trust someone local that does this it may be worth it to have them do it and pay them a few bucks, especially since it it in the back of your truck. just my 2 cents ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 5:26PM
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Thanks man! ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 03-March-2014 at 5:58PM
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I saw some videos, and when they replaced it, they just marked everything and put everything back the in exact same place, and they said it should be fine if it takes 10-30 lbs-ft of torque to turn it. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: californiajohnny
Date Posted: 03-March-2014 at 6:04PM
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i would guess thats about right, no more than 30 ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Big Bird
Date Posted: 04-March-2014 at 11:04AM
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If you're going that route, "sneak up" on the torque on the yoke bolt and check, check, check your rotational torque every little bit. If you go to far, it may affect your gear pattern as well as pinion bearings. ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Big Bird
Date Posted: 04-March-2014 at 11:10AM
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Before you take that apart, CLEAN the front pinion area. let it sit nosedown and see if it actually leaks/drips. It's not uncommon to have an oil damp/stain there. ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Grantorinosport351
Date Posted: 04-March-2014 at 11:24AM
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I'll try that, and that's how much torque it takes to turn the wheels/axels right? The 10-30? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: unlovedford
Date Posted: 05-March-2014 at 3:43AM
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I agree. Clean the area thoroughly and check to see if it even leaks. Honestly, on a rear end of that age, I would be concerned if I DIDN'T see any residue. It could be just normal creeping from years of use. If that is so, I would greatly hesitate removing anything. Change the fluid (and add TrakLoc additive if needed) to be sure all is well inside. ------------- Joe 1972 Mom's Squire Wagon 1972 Torino Wagon 1976 Torino 1968 Cougar XR7-First batch 1972 Torino 460 1989 BroncoII/Jeeps/Titanimous Popeye and Brutus (Rams) |
Posted By: Grantorinosport351
Date Posted: 05-March-2014 at 4:07AM
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Thanks, I'm going to buy some degreaser today and fluid, what do you guys recommend? Lucas? And how full do I fill it? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Big Bird
Date Posted: 05-March-2014 at 5:01AM
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There's a plug on the carrier that a 3/8" breaker fits in. It's visible in your picture above. Take that plug out. that is where you fill it, fill it with the differential level until the fluid is at or about level with the hole. ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Grantorinosport351
Date Posted: 05-March-2014 at 5:13AM
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Thanks ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 07-March-2014 at 4:29PM
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Ok well I got my 8.8 out, and have the 9 inch just sitting in there, but it's not looking good......on side is is sitting in place on the leaf springs, but the other side is about 2 inches. What do I do?!?!? It was dark so maybe I can get it in place tomorrow. But could it be the wrong size??? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Rockatansky
Date Posted: 07-March-2014 at 4:35PM
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did you not MEASURE the spring perch centers? or drum to drum? ------------- 72 GT Ute |
Posted By: Grantorinosport351
Date Posted: 07-March-2014 at 6:19PM
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Not at all, I was told that it's bolt right up, but I'll check tomorrow ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Big Bird
Date Posted: 08-March-2014 at 4:08AM
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Before you go any further, measure the spring perches and see if they are the same distance apart. The springs may not line up by themselves if they are hanging free. one or both may swing to the side. A bent or worn shackle or bushing can really move a loose spring. ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Grantorinosport351
Date Posted: 08-March-2014 at 5:20AM
Just took the measurements and it's like a 1 and a half shorter.  ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 08-March-2014 at 5:42AM
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AAH! What's your opinions guys? What should I do? ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Big Bird
Date Posted: 08-March-2014 at 6:45AM
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Easy answer, cheaper answer, Take your 8" that you KNOW works and fits and get the pinion seal replaced. If you have the yoke that fits the torino shaft, see if it can be installed as long as it's apart anyway. All a 4.11 gear ratio is going to do is waste gas(Engine RPM), ruin tires(Mandatory burnouts) and give you a headache at expressway speeds(engine screaming at about a billion RPM). For a cor the size and weight of a falcon, an 8" is plenty strong. It is equivalent in strength to the 8.8 which Ford used in fullsize cars and trucks as well as mustang GT, t-bird supercoupes, etc. ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: californiajohnny
Date Posted: 08-March-2014 at 10:37AM
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^^^^^^ exactly! what randy said above x2 ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: mcford
Date Posted: 09-March-2014 at 10:27AM
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buy a combination u joint. I had ot do that when i borrowed a friends 4.11 traction loc from a mustang to put in my 72 torino. Mustang Yoke took smaller u joints. ------------- Mike |
Posted By: Grantorinosport351
Date Posted: 09-March-2014 at 12:34PM
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Thanks guys! Today I got the yoke out, and man that thing was in there! (Had to use a wheel puller) the torinos yoke won't fit the 8.8. And john, I think I know what you were talking about when you said the preload was more of a "feel" thing, like if you turn it with out pulling out on it it feels rough, but if you pull it midway it feels smooth when you turn it. Is that what u weere talking about? Tomorrow I'm going to get a new seal (now that sucker! That's a different story!) and a u joint, and new fluid. Maybe tomorrow I'll have it driving again. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 09-March-2014 at 12:36PM
If only I had just bought a "hybrid" u-joint in the first place  ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |
Posted By: Grantorinosport351
Date Posted: 10-March-2014 at 8:53AM
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Well today I got my u-joint in my driveshaft, it fits both ends now, I ordered my pinion seal and it will be here tomorrow, also out of nowhere one of my coil overs shot off! So I bought new coil overs, and ii guess the rest of this will be continued on my build thread. ------------- ~Bryan 72 gts h-code (formal roof) 67falcon 04 f250 ''the great white'' |