JEEP ENG.BHSG X GM TRANS 4.686

Advance Adapter

This adapter bellhousing assembly is used to adapt the AMC / Jeep 4.0L, 258, 304, 360, and 401 to the GM SM420 4 speed and or the GM car style 4 speed transmissions.

The bellhousing kit includes a 356 T-6 aluminum bellhousing, 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.

Transmission

The kit is designed for 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. The bellhousing will also fit most car 4 speeds that have the 4.686″ front retainer.

Optional items:

P/N 716331 Slave cylinder

P/N 716130-60 slave cylinder hose

Bill Of Materials

• BELLHOUSING- JP 4.0 HO TO GM SM420 / 712570-BLK
• 3/4 SOFT PLUG / 716109
• PILOT BUSHING- AMC w/GM ID 0.590 / 716156GM
• LEVER- THROW-OUT CLUTCH GM / 716176
• GM THROW-OUT LEVER SPRING CLIP / 716176SC
• BALL PIVOT-AA BELL HOUSING / 716180
• T/O ARM BOOT – A/A BHSG. / 716332
• 5/16 -18 X 1-1/4 H.H.C.S. / 723134
• LOCK WASHER 7/16 STD PLTD / 724303
• 7/16 -14 X 1-1/4 H.H.C.S. gr. 5 zinc / 724328