This Allstar Performance ring and pinion installation kit fits Mopar 8-3/4in rear axle housings with the 742 casting, identified by a large "2" cast into the side of the housing, and is built around 1.796in I.D. carrier (side) bearings. It includes carrier and pinion bearings, gasket, hardware, seals, shims, and thread locker.
Spec Sheet: Allstar Performance Ring and Pinion Install Kit Spec Sheet (PDF)
Compatibility
Mopar 8-3/4in rear axle housings with the 742 casting (large "2" cast into the side of the housing) using 1.796in I.D. carrier bearings.
FAQ
How do I identify a 742 case housing?
Mopar 8-3/4in 742-case housings have a large "2" cast into the side of the housing.
What carrier bearing size does this kit use?
1.796in I.D. carrier (side) bearings.
What parts are included?
Carrier and pinion bearings, gasket, hardware, seals, shims, and thread locker.
How is this different from the 489-case kits?
The 742 casting (large "2") and 489 casting (large "9") are different Mopar 8-3/4in housing castings; this kit is specific to the 742 casting. Verify the casting number before ordering.
Is a spec sheet available?
Yes, Allstar Performance provides a spec sheet with installation reference specs, linked above.

