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1974 chevelle rear end size?

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pila
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1974 chevelle rear end size? Empty 1974 chevelle rear end size?

Post by JF74chevelle Mon Dec 28, 2015 8:12 pm

I was wondering if my rear end is a 8.2 or 8.5 ten bolt rear end, it's a 350 3-Speed automatic with 2.73 gears I am tired of my limp leg and looking into a posi once I save up a couple more pay checks!!!
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Post by pila Mon Dec 28, 2015 8:19 pm

It's an 8.5 The 8.2 was used in the '72 & older models. The 2.73 isn't exactly a performance ratio, but at least you will have twice the traction with a posi ! Very Happy

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Post by Dinomyte Tue Dec 29, 2015 12:53 am

As Pila said 8.5". The swap is fairly strait forward, and posi is nice, especially if you add some more power, it's nice to get it all to the pavement as opposed to wheel spin.
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Post by alowerlevel Tue Dec 29, 2015 4:35 am

Yep 8.5" with 28 spline axles

I just ordered one of these tonite http://www.quickperformance.com/SL-GM85-28--Spartan-locker-for-GM-85-with-28-spline-axles-includes-heavy-duty-cross-pin-shaft_p_19943.html Figured for the price its worth a shot.
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Post by Joe73 Tue Dec 29, 2015 8:52 am

alowerlevel wrote:Yep 8.5" with 28 spline axles

I just ordered one of these tonite http://www.quickperformance.com/SL-GM85-28--Spartan-locker-for-GM-85-with-28-spline-axles-includes-heavy-duty-cross-pin-shaft_p_19943.html  Figured for the price its worth a shot.

I think thats a good price as well as a good way to go if your not changing gears.  And a driveway install.  I like those lockers.


Last edited by Joe73 on Tue Dec 29, 2015 11:02 pm; edited 1 time in total
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Post by dynchel Tue Dec 29, 2015 9:53 pm

I have a powertrax locker. Easy install & works well.
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Post by alowerlevel Wed Dec 30, 2015 11:39 am

dynchel wrote:I have a powertrax locker.  Easy install & works well.

How is it driving? Noisy? My brother keeps telling me that Im gonna hate it cause its gonna make alot of noises (alot of his freinds have them in thier 4 wheeling trucks)
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Post by dynchel Wed Dec 30, 2015 12:14 pm

I don't have the cheap "lockrite" but the better "total traction system".  It's not too bad, you can hear it once in a while, and it definitely adds power to the wheel with most traction (no more left turn burnouts) lol
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