Mine makes rotating noises at low speeds... I've always suspected mine is off also... next time I have it out (well, actually, before I put it back in (blew engine up)), I will have to check mine out.argon said:I was measuring my torque tube input shaft. I put a dial indicator on the base of the input shaft and turned it. It is 15 thousandths of an inch off center as it turns. I was wondering if this shitty tolerance is normal of just on my tube.