Scott i had problems with my tti's hitting the P/S box. Directions state the correct distance from the center of crankshaft to top of the K frame is 5-1/4" and the engine should be offset to the pass side by 2-1/2" center of crankshaft to each frame rail. If not correct add shims between the insulator& K-frame mounting pad, Thats what i had to do on my Demon.