dougm395

i have a vibration at 50 mph in either 4th or 5th gear . ive replaced u joints and center support bearing

norcalsvx

are the tires balanced?

Saint_Berzerker

When you put the ujoints on, did you take the slip yoke out at all? You could've put it in a tooth or so off. Your driveshaft could be out of balance. Or you have too much front end lift and the ujoint angles are too much. There's a thread on here somewhere about that, do a search.

Also, could be your driveshaft. I was getting a bad shake at about 50, and I changed the ujoints and that got rid of a lot of it, but I still have the shakes a little bit, but I'm pretty sure it's my driveshaft.

86SR522REEFI

I have never been in a car that didnt shake at 50 mph, check the balance. and check all of the nuts and bolts. Has it been in an accident?

95ToyotaPU007

So what was it? or are you still driving your rig around with the shakes?