This adapter bellhousing assembly is used to adapt the AMC / Jeep 4.0L, 258, 304, 360, and 401 to the GM SM420 4 speed transmission.
The bellhousing kit includes a 356 T-6 aluminum bellhousing, universal dust cover plate, pilot bushing, throw-out arm, ball pivot, throw-out boot, fastening hardware, and adapter instructions.
Note: This bellhousing features two crankshaft positioning sensor locations for the 1991-2005 4.0L engines.
The kit is designed for exclusive use with the GM SM420 4 speed transmission. The SM420 was used in GM trucks 1947 to 1968 and has a 10 spline output shaft and was used in both 2wd and “divorced” 4wd applications.