Ok so heres the deal a few weeks ago my oil pump broke i pulled the engine and put a high volume pump, ARP oil pump driveshaft, new oil pan, timing chain and some Prothane Polyurethane motor mounts on. Ive been driving my car and there is a vibration that wasnt there before. I can feel it in my seat when the RPMs are between 3-4k. I replaced the Harmonic Balancer with a Ford Racing Unit, that didnt do a thing so i got underneath the car took the motor mount bolts off and the passenger side stud on the motor mount is sitting nice a flush with the slot in the K-member, however on the drivers side it is not on the bottom of the slot, the stud stops like a centimeter before it touches the bottom.... Could this be my vibration? My driveshaft is a Ford Racing aluminum and is about 3 years old, could it just be the mounts or what? Its not a horrible vibration but its enough to shake my rear view mirror and make everything blurry in it..