I've always done both the deep pan and the tranny cooler, but to ad to this question I'd like to know where everyone mounts their coolers? I've always mounted mine on the front of the radiator but the cooler and lines need to be removed every time the motor has to come out. I've heard of some guys mounting them in the front wheel-well area, and some mount them towards the rear of the car. Will any of this work on a street car, or is it just best to have it on the front of the radiator? I hate blocking a portion of the radiator.