A Heavy Duty Output Shaft Kit is the best solution for strengthening the rear output of a NP231 transfer case when converting to a CV style driveshaft. This kit from Advance Adapters includes all the parts necessary for making the conversion—a 32 spline output shaft, new extension housing, yoke for a 1310 series U joint, and all the small parts and hardware.
Disassembly of the transfer case is required to install this kit. In many instances, it can be performed without removing the case from the vehicle.
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