1.5" TH350 ATLAS ADAPTER. USE WITH 4WD TH350 WITH A 7/8" OUTPUT SHAFT STICKOUT. If This Adapter is being used with a 4x4 700R4 you will also need P/N AS-0404 Bill Of Materials 10mm-1.5THR X 40mm S.H.C.S. black oxide / 720046 BOLT 3/8 -16 X 1.25" SHCS ZNC / 723730 S.H.C.S. 3/8 -16 X 1-3/4 / 723729 GM AUTO TRANSMISSION O RING / 716511 ADAPTER- TH350 TO JEEP NEW PROCESS / 51-6800