Rear end info for 1988 Trans Am GTA
04-03-2006, 12:40 PM
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Car: 88 GTA, 74 T/A
Engine: 383 stroker (Procharged)
Transmission: TH400 w/brake (new 2013)
Axle/Gears: 12-Bolt S60 - 3.73 (new 2013)
Rear end info for 1988 Trans Am GTA
I've been having problems with my rear end thats in my 88 GTA. I recently bought a eaton posi. unit, but it would not fit inside the housing. I would like to find a strong aftermarket posi unit and 3.73 gear, for my current 9 bolt rear end. Any info or opinions would be great!
04-03-2006, 02:14 PM
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Did you buy a posi for a 10 bolt?
Internally, 10 bolts and 9 bolts are not the same. For 9 bolt stuff, go to www.diffsolutions.com
I might be cheaper to just find a third gen 10 bolt diff and put it in.
Internally, 10 bolts and 9 bolts are not the same. For 9 bolt stuff, go to www.diffsolutions.com
I might be cheaper to just find a third gen 10 bolt diff and put it in.
04-04-2006, 12:27 PM
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Car: 88 GTA, 74 T/A
Engine: 383 stroker (Procharged)
Transmission: TH400 w/brake (new 2013)
Axle/Gears: 12-Bolt S60 - 3.73 (new 2013)
No havent bought a 10 bolt yet but thats what i need. Thanks for the info i will check the web site out.
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