Ok, recaping.. 1984 Jimmy removed th350/208 and am replacing with th400/208. tranny and t-case is now married and looks good. flat crossmember to "W" shaped crossmember requires new mounting holes in the frame. th400 is longer tranny and will require new mounting holes anyways? Question: Should I drop the engine in first, then bolt up the tranny to the engine and locate the crossmember location that way? here is pic of tranny/tcase ready to raise into position.