I have what I believe is a 7.6 out of a monte ss. Its not a 8.5. I do know its a 3.73 with the limited slip which aren't that common. Gears are in good shape and limited slip works good. It is rusted outside and needs brakes and brake lines. Have upper and lower arms and sway bar. Guts could be used in a different axle. Located southwest of chicago. $300. Pm me. Thanks