I'm preparing to swap the 200 4r in my '88 Buick wagon for a th350. The engine has been changed previously to a Chevrolet 350, and I believe the driveshaft already in it will work. I'm having some difficulty with the crossmember. The 350's mount is a few inches further forward than the 200's. I think the crossmember position for a 350 would be diagonal across the car, driver's side placed in different frame holes closer to the front from where they are now. Existing passenger side holes reused? However, after pulling the crossmember out and looking at it closer it appears this one for the 200 is not meant to be angled like that. And sliding it forward equally on both sides puts the passenger side exhaust hump very close to the heat shield on the floor pan and rubs it. So I'm looking into getting a different one. Have any of you done this swap before, and could you tell me what crossmember you used? Thank you.