I installed my Prothane manual trans mounts yesterday and I expected vibrations to increase, but this is rediculous. Cruising and accelerating 2nd-5th is manageable, but srarting off in first through about 1500 rpm, it vibrates like crazy. My throttle body was pretty dirty, so I cleaned it as much as I could without removing it and it hasn't made any difference at all. Does it need time to relearn after a tb cleaining? Anybody else have this issue and fix it or do I have to get over it?