Originally Posted by EdPruss
If your trans has a 4.875” retainer diameter and your bell housing is 5.125”, Advance Adapters in Paso Robles has a sleeve to make up the difference.

Ed
Not gonna keep the SM420, the new motor will have a 4L60 auto behind it. That means none of the existing engine and trans mounts will work, and the front half of the driveshaft needs whittling.

Last edited by Hedgehog; 03/02/2021 2:29 PM.
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