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rear brake conversion

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fordpower View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Topic: rear brake conversion
    Posted: 03-February-2024 at 10:16AM
Just picked up a 2011 crown vic rear end. It has new brakes and rotors. Where is the post on how to do conversion. I looked but know luck.Its just me. Lf it does not work I'll just repost.Only paid 50. and it has new pads rotors and one backing plate.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 03-February-2024 at 12:54PM
I don't think anyone has installed those yet on a 70's Ford, I posted that I have a used set from a 2004 model to attempt with.

Those 2003-2011 CV's have a parking brake cable that goes in at 90*, and a bracket welded to the rear housing to hold that cable. The backing plate will have to be clocked so the cable can go into it that way, so it may not work easily on every rearend.
Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W
73 Ranchero GT 351C-4V &4R70W for sale later.
92 Lincoln Mark VII SE GTC, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 1:50AM
I noticed that. Thought it was an early model at first. For 50 with all new brakes I got it. Book said 03-11 same.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 2:54AM
Yeah, if they can work it's a great upgrade. They are the same on all the CV's, Gran Marquis, and Town Cars of those years. I bought a rotor and pad kit years ago when I got the brake parts, thinking they'd go on my Mark VII. The orientation for the parking brake cable was something I didn't think of in the beginning.
Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W
73 Ranchero GT 351C-4V &4R70W for sale later.
92 Lincoln Mark VII SE GTC, OBDII 347/4R70W
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fordpower View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 4:23AM
another surprise is the 4bolt mounting bracket is 180 off. Why did ford put that stupid rubber collar on the top half of rear end. only holds sh*t that rotted off the mounting brackets.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 6:58AM
Ok stupid question. on our 9in rear ends the bolt holes on the end that hold axle in are the holes 2in horizontal 4in vertical or vice versa.    
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 7:05AM
The 9" rears have a small bolt pattern on the earlier models like the 1972, and it's a little larger in later models. I'm fuzzy on when that changed, during 1973 I think.

The late 8.8's have a slightly different pattern, which is kind of close to the old small pattern. Most likely at least two new holes will have to be drilled on the 8.8 backing plate.
Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W
73 Ranchero GT 351C-4V &4R70W for sale later.
92 Lincoln Mark VII SE GTC, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 8:29AM
It's not the holes it the fact that the holes are at a 180 degree difference. my pinto is 4ln a cross or horizontal and 2in vertical. this 8.8 is just the opposite. Only thing I see would be to some how change it on the rear end. I wondered if the 9in was like the 8.8 or like the 8in
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Inkara1 Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 8:46AM
On my '72 (August build), the bolts are farther apart horizontally and closer together vertically. The long sides of the rectangle are parallel to the ground. 
1972 Gran Torino station wagon, light blue, 351C 2V, prior owner upgraded to 4V (2V heads), originally had a C4 but prior owner changed to C6 for some reason.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 9:11AM
Originally posted by Inkara1 Inkara1 wrote:

On my '72 (August build), the bolts are farther apart horizontally and closer together vertically. The long sides of the rectangle are parallel to the ground. 


That's the normal way, and the CV backing plate would have to be oriented so the parking brake cable comes out on a side where there is space for the cable and a mounting bracket. If there is an object like a leaf spring hanger or any other bracket etc, control arm mount, then the cable couldn't work well there.
Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W
73 Ranchero GT 351C-4V &4R70W for sale later.
92 Lincoln Mark VII SE GTC, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote aquartlow Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 9:43AM
The 96-2002 CV rear disc backing plates are just about a bolt-on for the small bearing '72 housing, IIRC. I actually used these on my small bearing '72 Lincoln Mark IV housing I use on my Ranchero.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 10:37AM
Ok so its the brake cable that made them go 180 degrees from normal.Well only have 50$ in them. It's a shame because the brakes are like new.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Eliteman76 Quote  Post ReplyReply Direct Link To This Post Posted: 04-February-2024 at 6:34PM
on 1972 and early-mid year 1973, Ford used the small bearing housings. The 8.8 used on Explorers, Fox body Mustangs, and the crown Vics all used the small 9" bearing. The main issue comes with the Torino 9" housing, the lock collars included are a 1/3 smaller on the outer diameter and narrower by 1/8" to 3/16" for the press fit "wedding ring" that locks the wheel bearing on the axle.

I dealt with multiple brands of wheel bearings over the years, and NONE of the suppliers have the correct 72-73 small bearing Torino 9" bearing lock ring.

Now...anyone that knows me I have never been gentle with my GTS, and I willingly bang shifted this car, slid and drifted it at will.the 72-73 9" housings do not tolerate much side loading.

With that said, the rear disc brakes should adapt with the 72-73 small bearing backing plates but some fab and welding is needed for the e brake cabling. 
Explorer/mountaineer rear discs also work, Psquare75 did a conversion on his elite. Vaguely recall he had to flip/swap brakes left to right / right to left but bolted it together. Biggest issue was the proportioning valve. 

I was always looking to swap over, but ended up installing my '76 big bearing 9" in place of my 1972 Housing. Got tired of axle walk issues even with the safety plates installed. 

At the end of the day, this is hot rodding. It's metal. Chop-cut-weld. 
If you want to adapt the brakes, and just need the brackets off the CV 8.8, saw them off, and weld to your 9" housing. Flip side, weld the spring brackets to the 8.8 and just run the 8.8. Granted while it'd be awesome because then you have tone rings for ABS brakes, the 9" makes things so much easier to service. 

Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 05-February-2024 at 2:59AM
Well and good. As I looked at the pinto last night I wondered how I put springs and rear end in it all by myself 7yrs ago.I am just too old.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 05-February-2024 at 9:44AM
on a positive note it appears there is enough room to put my bearing plate over it and drill new holes.This 8.8 is def. a large bearing car.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 05-February-2024 at 12:43PM
Originally posted by Eliteman76 Eliteman76 wrote:

on 1972 and early-mid year 1973, Ford used the small bearing housings. The 8.8 used on Explorers, Fox body Mustangs, and the crown Vics all used the small 9" bearing. The main issue comes with the Torino 9" housing, the lock collars included are a 1/3 smaller on the outer diameter and narrower by 1/8" to 3/16" for the press fit "wedding ring" that locks the wheel bearing on the axle.

I dealt with multiple brands of wheel bearings over the years, and NONE of the suppliers have the correct 72-73 small bearing Torino 9" bearing lock ring.
...


That says a lot, and my 72 Gran Torino had more than its share of rear bearing and axle issues. We lost a bearing on a 1200 mile trip to Minnesota in the late 70's, had to get it towed about 40 miles to my grandfather's garage. He got the bearing and axle out given it was seized hard, it took a while to clear the less of metal. I got the car and had a couple of axle bearings go out, the same right one. Then I lost the axle one day going to work, it broke right next to the bearing, on the highway as I was getting off. I limped it around the corner(right turn), and then it fell off. The dealership I was working at was a few hundred yards away, so I got it towed, and during the day found a used axle for $75.

I think I'll work with my two 73's and do what I can for disc brakes if it's not too bad to convert. My final project I'm still hoping to use a 2003-2006 CV frame, the whole chassis, thus the ABS and nice front suspension.
Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W
73 Ranchero GT 351C-4V &4R70W for sale later.
92 Lincoln Mark VII SE GTC, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 10-February-2024 at 12:58AM
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordpower Quote  Post ReplyReply Direct Link To This Post Posted: 10-February-2024 at 1:01AM
well won't work,to much machine cost.
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