The Ford T-18 adapter to the Jeep NP231 / 207 is 3.250” in length. Adapter material is a strong 356-T6 heat treated aluminum alloy and the adapter has a provision for a transmission mount. The adapter kit includes a adapter housing, new T-18 output shaft, gaskets, seal, fastening hardware and adapter instructions.
NOTE: This adapter kit should be used with transfer cases that have a input shaft stickout measuring 2.12”.
The adapter assembly will fit the Jeep NP231 / 207 transfer case with a 21 spline input shaft. This input shaft protrudes from the face of the transfer case 2.12”. 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.
This kit is designed for exclusive use with the Ford T-18. The Ford version of the T-18 was used from 1967 until 1984 model years and was used in 2wd & 4wd truck applications. It’s a heavy duty 4 speed with a cast iron case and top cover. The case length is 11.187” and on the driver’s side of the case will be casting number of T-18 or 13-01 with a PTO cover plate found on the passenger side and/or driver’s side.