The Allstar Performance ALL68631 pinion shim kit is designed for Mopar 8.75 in differentials with the 489 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 489 case casting.
FAQ
What is included in the Allstar Performance ALL68631 pinion shim kit?
The ALL68631 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 489 case casting.
What differential does the ALL68631 pinion shim kit fit?
The ALL68631 pinion shim kit is designed for Mopar 8.75 in differentials with the 489 case casting.
Does the ALL68631 kit include a crush sleeve?
Yes, the ALL68631 pinion shim kit includes a crush sleeve along with pre-load shims, bolts, a pinion nut, and shims.
What is the ALL68631 kit used for?
The ALL68631 kit is used to set pinion bearing preload and pinion depth during differential assembly on a Mopar 8.75 in differential.
How does the ALL68631 differ from the ALL68637?
The ALL68631 kit is for the 489 case casting of the Mopar 8.75 in differential, while the Allstar Performance ALL68637 kit is for the 742 case casting of the same differential family.

