I know there are a ton of threads on the different auto transmissions to swap in to the terminator. Can someone run down the differences between the choices? Which I assume are 4r70w, th400, glide, c4? I mostly see the th400 or 4r70w swaps. Taking in to account cost, ease of swap and durability. Right now my car has a 2.2 KB on it but I want a trans built to hold 900hp or so for when I upgrade power adder/motor.