Rears Anyone????

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gbodydude

Greasemonkey
May 27, 2008
128
1
18
if it just a street car i would get a 8.5 non posi and put a posi unit in it.
 

pontiacgp

blank
Mar 31, 2006
29,270
20,397
113
Kitchener, Ontario
I have around 350 hp with a 5 speed standard....I have no concerns running a 7.5 with 3:08 posi and Superior axles.
 

Doober

Royal Smart Person
Apr 8, 2007
1,253
20
38
Swartz Creek, MI/Tucson, AZ
On top of that, with a taller gear like a 3.08 the teeth are thicker, which makes the ring gear less prone to any distortion it may have... in this case though it's more in the housing itself than the gears I believe.
 

art

Greasemonkey
Apr 24, 2009
101
15
18
Absecon, New Jersey
Some questions were asked about the 8.8 rear. It isn't a bad swap. The availability and cost definitely add to the appeal. The factory posi unit isn't that great. And just for the record, I have yet to break my 7.5.
 
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