Vibration

[RKershner]

Getting a vibration from 45 -65 mph on the throttle and goes away when the throttle is lifted. My guess is a u-joint,feels like its in the back part of the truck. Any feed back?

 

[Barry]

Just changed out all 3 joints at 160K... ... ... ... . read thread. . "Shudder in second gear".



Mine was different in that once I could get past 15 mph, mine went smooth.



How many miles on your rig?



One more thing... ... ... . changing those joints is a bear!! The shop that worked on mine bid the job at 2 hours... ... ... ... 5 hours of work by 2 techs and lots of swearing... ..... and I was rolling.



It's a job!!

 

[RKershner]

Thanks for the replies,just finished changing out the rear joint and test drove it. Smooth running now. I know I should have change out the front also. Have 60000 on the truck and the front didn't look bad. I purchased 2 joints so I have a extra. Your right Barry it is a bear changing them out. I just heated the yoke with a torch until the plastic melts out the sides while its under pressure in 12 ton press,then the joint pops loose,But still couldn't get the caps off. So I just cut the joint with the torch and then pressed the caps out. Andres I didn't get any movment out of the bad joint ,but the grease had blown out of the joint, I guess from over heating. Thanks again,Bob