forum.jdrace.com

Posted: **Mon Feb 03, 2014 11:49 am**

Jim,
I want to rebuild an 8.5 GM "Z" spring posi. The spider gears were a little loose on teardown,but clutches look to be in good shape. Do you have any thicker shims to shim it up,or where can I pick some up? This is for my own personal build,and not looking to drop a new posi in,BTW.
Thanks,Drake

Posted: **Mon Feb 03, 2014 10:39 pm**

Well we normally use thrust washers from OPEN diffs trimmed down 12 bolt chevy shims also work - Always use the original 8.5 shim next to the clutch and your extra shim between the case and the original shim.

Jim
J D

forum.jdrace.com

Looking for GM 8.5 posi shims

Looking for GM 8.5 posi shims

Re: Looking for GM 8.5 posi shims