7.5 8.5 chevy rear end

fatstax · COBOURG, ONT

7.5 8.5 chevy rear end

Lightspeed Mike · BELLEVILLE, ONT

S truck should be 7.5" , GM also made 8.5 and 8.2" diffs

fatstax · COBOURG, ONT

i figured it out, the 8.5 and the 7.5 are both ten bolts but the 8.5 is slightley larger and different. his truck has the 7.5

Nickeleye · COURTICE, ONT

the little ears at the bottom of the diff that stick out.... on the 7.5" pointy and on the 8.5" they're 90*.
www.hotrodders.com/forum/attachment.php

RacerRick · TORONTO, ONT

Unless it is an S10 extreme or a 4x4 with an off road package, both with a 5 speed, it will have the 7.5.

As mentioned above, they are easy to identity. If it has two little "teeth" sticking out on the bottom corners at an angle, it is a 7.5. The 8.5 is much larger and squared off on the bottom with no little teeth sticking out.