It's not AWD. The RB25 Tranny, which is RWD, bolts directly up to the RB26. The Rb25 has the same internals as the Z32 tranny but with a different Bellhousing. It even uses a Z clutch (N/A Z clutch not a TT) The oilpan from a RB25 is used on the Rb26 (holes are already on the block) Slightly modified oil pickup is required because the 26 is front sump and the 25 is rear. Other then that its not a hard swap. I'm currently doing it in a 240sx not a 350.