If you have never rebuilt a tranny, your best bet is to leave it to the professionals. By the time you gather all the books, DVDs, and special tools required you will be 1/2 way there. A transmission is a very delicate and precise piece of equipment and not a good choice for a novice to tackle, esspecialy an overdrive model. If you must do the work yourself go with the TH350 or the TH400.