vibrating truck

[dogdaysunrise]

I just did my u-joints about 2 weeks ago, and all seemed well (besides that clunking at the pinion, and that turned out to be nothing big) anyways, I was going to down the highway and at about 60mph I get this wicked vibration, all through the truck. Would a backwards drive shaft cause anything? It's a balanced aluminum driveshaft so you would think no. Could the u-joints have gone bad? I just noticed it for the first time a couple of days ago.

 

[steve_kibbe]

make sure the caps of the u jounts are tight. Put the rear end on jack stands and spin the drive shaft, make sure its not bent or off center.

 

[sweetk30]

did you put the yoke on in the same spot you took it off? i did it backwards one time and same thing. fliped it and 100% better.


always mark the parts to the shaft as it is balenced this way. you would think it wouldnt make a big problem but it does sometimes.

 

[dogdaysunrise]

i found and fixed the problem today. One of the snap rings let go on the u-joint and the cap started backing out. Its a damn good thing i finally noticed it, I must have looked at it, although quickly a handful of times and all seemed well. Well all is well now. coulda been real bad.

 

[steve_kibbe]

glad you got it fixed before it got bad

 

[tomseviltwin]

wheel bearing?

 

[dogdaysunrise]

no bearings were good, the cap was almost off the u-joint. I guess a snap ring had let go and it was backing off on the highway. i'd say 1 more day with it like it was and I was getting a new truck.