Quick Question about my rear end
01-16-2004, 11:48 PM
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Car: 1988 Trans Am GTA
Engine: 5.7 TPI (Now HSR)
Transmission: 700R4 by Probuilt
Axle/Gears: 3:27 9 Bolt Posi W/ Discs
Quick Question about my rear end
I was just wondering what rear came in my car. I know its a 3:73 open rear but what spline axles does it have? I was also wondering what series it was and such, The reason Im asking is because I was thinking about buying a posi to put in it but I need to know what one I should buy.
01-16-2004, 11:56 PM
#2
26 spline axles.
3.23 and higher numerically are "3 series" 7.5" / 7.625" carriers.
3.08 and lower are "2 series"
You can very easily use later (~89 - 92) axles to change to 28 splines so you can use a posi that's 28 spline.
Good luck w/ your swap.
3.23 and higher numerically are "3 series" 7.5" / 7.625" carriers.
3.08 and lower are "2 series"
You can very easily use later (~89 - 92) axles to change to 28 splines so you can use a posi that's 28 spline.
Good luck w/ your swap.
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