zack_57

Alright guys. I've gotta 1997 ex cab f150 4x4 with the torsion keys turned up and 33 in mud grapplers. Not to long ago the yoke at the rear end broke while doing 65 MPH down the high way and my driveshaft hit the asphalt and I had a new one built for it. Now when I give it a little extra gas from a stop it Sounds like something is vibrating really bad towards the back of the truck and also from about 15-25 MPH the whole truck shakes, dash, steering wheel and all. I don't know What to do. Any ideas on where to start

FUZZYDP

Sounds like shaft out of line or balance. Could be U joints, pinion bearing. I'd start with shaft n have it checked.