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What do need for a Posi rearend?..Trac Loc

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GoldFinger View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GoldFinger Quote  Post ReplyReply Direct Link To This Post Topic: What do need for a Posi rearend?..Trac Loc
    Posted: 06-April-2016 at 1:44PM
Well,the topic pretty much sums it up.My car came with a non posi highway gear.
While it is cool to keep up with everyone on the highway,I would prefer to step up with about a 3:73 gear.
So with my rear tire and wheel size it will probably be run like a 3:55
gear.So besides a ring and pinion what else will I need to get?

Edited by GoldFinger - 06-April-2016 at 1:47PM
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californiajohnny View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 06-April-2016 at 1:53PM
basically a good used 3rd member with the trac'lock and the gearing you want, pull the axles and swap the 3rd members Wink put the axles back in fill with 90w and don't forget to add a tube or 2 of the friction modifier!
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GoldFinger Quote  Post ReplyReply Direct Link To This Post Posted: 06-April-2016 at 2:48PM
Thanks!
How many splines?
Don't know much about what to buy or look for.
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GoldFinger View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GoldFinger Quote  Post ReplyReply Direct Link To This Post Posted: 06-April-2016 at 2:53PM
Can't I just by all the internal items since I have a 9 inch from the factory?
I have someone to do it for me once I get everything.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 06-April-2016 at 5:17PM
yes that's what i did! probably the best way to go (with new carrier and bearings and seals) then you know it's good! also a good time to replace the axle bearings while it's apart Wink
 you probably have a 28 spline in there now, you could pull an axle and count the splines before you buy! it should be either 28 or 31 splines.
 the place i got mine from doesn't have any at this time. but this is the closest i found new:
 
http://www.ebay.com/itm/9-Ford-28-Spline-Posi-Unit-Trac-Lok-9-Inch-NEW/221873451647?_trksid=p2047675.c100040.m2060&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D35934%26meid%3D9e04a2052be44a74b01ec1f82ef38f09%26pid%3D100040%26rk%3D1%26rkt%3D4%26sd%3D221873451647


Edited by californiajohnny - 06-April-2016 at 5:20PM
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
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GoldFinger View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GoldFinger Quote  Post ReplyReply Direct Link To This Post Posted: 06-April-2016 at 11:00PM
Thanks,if it is 28 is it ok to go to a 31 spline?
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californiajohnny View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 07-April-2016 at 2:01AM
yeah you'll need to buy some 31 spine axles
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
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mcford View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mcford Quote  Post ReplyReply Direct Link To This Post Posted: 07-April-2016 at 7:19AM
ITLL BE 28 SPLINE.
Mike
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