Well, I can see the protests now, but I've made up my mind. I wanna drop the SM465 in my shortbox in favor of a 700r4. Now, just wait, I have good reasons. First off, its a daily driven 2wd shortbox. It has a pretty healthy 355 (335hp) and I want it to move. The trouble is that I only get 13 mpg combined, downshifting to 1st is a real chore (bad fork or synchro) and the clutch slips on hard take offs. I know that i'll need a new drive shaft, torque convertor control, linkeage, cooler, flexplate, shifter and dipstick. What else have I missed? I'm primarily concerned about the crossmember. I have my exhaust all made up and I dont want to have to change it. Thanks!