On all Jeep vehicles that were equipped with the AMC TH400 and Dana 20 transfer case, this adapter kit is designed to replace the original Jeep adapter. The factory adapter assembly is considered weak and prone to breaking. The individual components of our Advance Adapter kit will not work with the stock Jeep adapter parts.
The adapter material is 356 T-6 heat treaded aluminum alloy. The adapter will retain the original Jeep transmission mount and is identical in length. The adapter kit includes a adapter housing, new 15 teeth coupler shaft, bearing, snap rings, gaskets, seal, fastening hardware, and adapter instructions.
Advance Adapters got its start in Downey, California in 1971 with a single adapter mating a Muncie car 4-speed to a Jeep Dana 18 transfer case. Eventually headers, overdrives, motor mounts and linkage brackets were added to the offerings to complement their core adapter components. When interest in rock crawling spiked in the mid-1990s, Advance Adapters offered low ratio transmission swaps then switched gears into the ultra-low gear transfer case arena. Today, the company is based in Paso Robles, California and their engine and transmission conversions for Jeeps are in kit form and sold as individual components. Shop Advance Adapters Now