My setup is 327 w/ TH400 in a 67 short frame. I have the original DL for a 283 4spd short frame and I have the long frame DL that came out of the donor truck (67) with the 327 and TH 400. I was going to have the long Dl shortened but I have 2 different types of carrier bearings. My short frame has the side ti side bolt pattern on carrier.
I hope this makes sense