The Allstar Performance ALL68637 pinion shim kit is designed for Mopar 8.75 in differentials with the 742 case casting. The kit includes pinion retainer pre-load shims, bolts, a crush sleeve, a pinion nut, and shims for setting pinion depth and bearing preload.
Spec Sheet: Allstar Spec Sheet
Compatibility
This kit is designed for Mopar 8.75 in differentials with the 742 case casting.
FAQ
What is included in the Allstar Performance ALL68637 pinion shim kit?
The ALL68637 kit includes pinion retainer pre-load shims, bolts, a crush sleeve, a pinion nut, and shims for setting up a Mopar 8.75 in differential with the 742 case casting.
What differential does the ALL68637 pinion shim kit fit?
The ALL68637 pinion shim kit is designed for Mopar 8.75 in differentials with the 742 case casting.
Does the ALL68637 kit include a crush sleeve?
Yes, the ALL68637 pinion shim kit includes a crush sleeve along with pre-load shims, bolts, a pinion nut, and shims.
How does the ALL68637 differ from the ALL68631?
The ALL68637 kit is for the 742 case casting of the Mopar 8.75 in differential, while the Allstar Performance ALL68631 kit is for the 489 case casting of the same differential family.

