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Transmissions and Drivetrain Need help with your trans? Problems with your axle?

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Old 04-03-2006, 01:40 PM   #1
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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!
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Old 04-03-2006, 03:14 PM   #2
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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.
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Old 04-04-2006, 01:27 PM   #3
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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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Old 04-04-2006, 01:27 PM
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Reload this Page Rear end info for 1988 Trans Am GTA
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12, 1988, 88, bbc, bolt, end, firebird, gen, gta, info, parts, posi, rear, rearend, trans, transam
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