Wow...seems simple enough! I believe I was getting the typical oil leak coming from the hole between the transmission and the block, which isn't for certain the rear seal, but it was pretty oily on the back side of the motor. The motor and transmission were rebuilt, but I just have a bad feeling about the seal that is in there now because we had a hell of a time getting it in there along with the side seal and rear main cap. If it is really this easy, there is no question I will do it ASAP! Do I absolutely need the puller, or can I figure something out myself? I just don't do enough of these to justify it, perhaps they do rentals at autozone? I have a puller for crank pulleys and such, so maybe that could work. Thanks for your help!