By Disco Infurno on Tuesday, April 24, 2001 - 10:01 pm: Edit

I have no lift, nothing excessively heavy on my truck, but yet I get vibrations throughout the truck at speeds between 60 and 65. Smooth as ice before 60 and the same after 65. What could this be?

By Will on Tuesday, April 24, 2001 - 10:09 pm: Edit

Could be the driveline....You may have a coupler going bad on the drive shaft. How many miles??

Will

By MarkII on Tuesday, April 24, 2001 - 10:16 pm: Edit

I just added a lift and noticed loads of vibes between 40-50 and 60-70. Yanked on everything under the truck to find out if anything was loose - nothing. Tonight I decided to pull the rear shaft just to test - bingo! The nuts on the tranny side were just over finger tight. Tightened them up - no more vibe. Check it out. Just yanking on the shaft might not be enough (as in my case). Try a wrench on it to see if you can tighten any of the 16 bolts on the 2 drive shafts. You also might just want to pull them 1 at a time like I did. Found a U-joint on the front that was giving up the ghost as well.

By Disco Infurno on Wednesday, April 25, 2001 - 09:49 pm: Edit

60K miles, on a pretty well maintained truck (while I've had it) by me as well as a very competent shop here in NC.

Alex

By cjones on Monday, April 30, 2001 - 04:34 pm: Edit

I also had the same vibration problem from 60-65 then at 75-80, with out a lift. Took it to LR Dallas and after 2 and a half hours of test drives and "convincing" them that there really was a problem, had the rear drive shaft replaced under warranty, lucky me. Few months earlier had the rear coupler replaced, but this was before the problem started. Everything seems ok now.