Need some help. I have a 90 with a 4.2. Just about got all the mechanicals sorted and ready to do the interior, then lift it. One last thing I can not figure out. There is a vibration and sound that I think is in the driveline maybe? Whe I first got it, it sounded like a warped rotor. A pulsing vibration and sound. A change lf rotors did not fix it. If you have ever flat spotted a tire, you know that thumping? That is what it feels and sounds like. I have also noticed that the transfer case seems to be slinging some ATF upwards, and actually thru the holes in the floor. Any ideas?