Hello, I have changed transmissions on all but one of my caravans so far (i've owned 6). My question if someone can help me is, I have a rebuildable core from a 1999 with a 3.8l and I have a 1997 with a 3.3l that the differential pin has done it's thing (broken and eaten partway through the case, but not grenaded it YET) I would like to rebuild the tranny from the 3.8 and put it in the 1997 3.3. Can anyone tell me what differences I may experience or if it is not possible. Is pump shaft going to be compatible, and what sensors will or will not work from the 1999. I believe the case casting is the same, so i'm less concerend about bolt-up (unless I am wrong). Any assistance would be of great help. Thanks, Jim