Yeah, gone through all that over the past years, greased the slip yoke, first replaced engine + trans mount, fixed the clunck for 80%, it came back, tightened the bolts on the transmount, came back again, turned out bolts on the crossmember had come off, fixed, that....and now its getting worse again and gone over all the previous items...its to strong a clunck for just the slip yoke I'm afraid...and yes, my tire pressures are equal too