Replacing the rear axle ring and pinion on the corporate 8 ¼-inch axle with a 3.21:1 gear ratio as found on 2007-2008 Dodge Nitro models requires a specific and unique service procedure.
Follow procedures available in DealerCONNECT > TechCONNECT under Service > 3 – Differential & Driveline > Rear Axle – 8 ¼ > Gear-Pinion/Ring > Removal And Installation > Gear-Pinion/Ring.
a. 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.
b. Installation of the ring gear onto the differential requires the use of a bearing heater and left-hand threaded pins P/N 10126-2.
These special service tools are required for the 8 ¼-inch ring gear in addition to standard rear axle service tools.
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