diesel nut, as far as an agressive shift kit i totally agree with you, but for the guys with 25-40k on a relatively solid trans, no apperant problems, from what i have seen, and im no trans expert....but i have seen a mild shift kit (no custom vavle body) and a torque converter make a trans really solid, any imput from a guy who knows more about trannies than me?? like i said, i know the basics, but i dont work on trannies daily and dont ever tear down autos.....