GM 700r4 to Jeep NP231 23sp Transfer Case Adapter

The 700R automatic transmission adapter to the Jeep New Process 231 is 1.50” in length. The adapter material is 356 T6 heat treated aluminum alloy and has a provision for a transmission mount. The adapter kit includes an adapter housing, new 23 spline 700R4 output shaft, bearing, snap rings, o-ring, seal, gasket, fastening hardware and adapter instructions.

 

 

The adapter assembly will fit the Jeep NP231 transfer case with a 23 spline input shaft. Introduced in 1988, the Jeep NP231 is a part-time transfer case became the standard for XJ and YJ models. It was also used in six cylinder ZJ models through 1995. Chain driven with a 2.72:1 low range, it’s reliable even with more than stock horsepower applied.

 

The Advance Adapter kit is designed to fit Jeep New Process 231, 242, 247, 249, and 2410 Rock-Trac transfer cases.