Replacing the rear axle ring and pinion on the 8 ¼-inch axle with a 3.21 gear ratio has specific and unique service procedures. This applies to 2007-2008 Nitro and 2008 Liberty vehicles.

Follow procedures available in DealerCONNECT > TechCONNECT under Service > 3 – Differential & Driveline > rear Axle – 81/4 > Gear-Pinion/Ring > Removal and Installation > Gear-Pinion/Ring.

1. Removal of the ring gear from the differential requires pressing the ring gear off of the differential with Plug 8926-2 and Remover 10126-1.
2. Installation of the ring gear onto the differential requires the use of a bearing heater and left hand threaded Pins 10126-2.

These service special tools are required for the 8 ¼-inch ring gear in addition to standard rear axle service special tools:

Plug…………….8926-2

Remover……….10126-1

Pins…………….10126-2