Driveline Vibration At Speed

SteveCZ · November 17, 2003

Just got back from hauling the sleds up north for the winter, and on my way up, we stopped for lunch. After lunch, got back on the road and got up to speed.

I felt a slight vibration that would last for 3 or so seconds, then fade away for 3 or 4 seconds, then come back.

I pulled over immediately, figuring something with the trailer or tires was screwed up (snow in the tires or something).

I couldn't find anything amiss, so I kept going and it stopped.

Dumped the sleds off and getting back up to speed with an unloaded trailer, it did it again, only it came back and stayed vibrating the whole way home.

I'm pretty sure its not the trailer (Triton XT aluminum), because when I let off the gas going 60mph, the vibration stops. As soon as I get back on the gas, it comes back....

I tried shifting into 3rd to see if its gear specific and it was still there.

I've seen a few postings out here, but nothing close to what I'm experiencing.

I just had the tranny fluid, transfer case, and diffs fluids changed, and a U-Joint replaced about 3000 miles ago, not even.

The last I checked, my Tranny fluid level was fine, so its not low.....

Any ideas?

bfrd22 · November 17, 2003

I Had the same problem on my 94, I thought it was a ujoint also. but it didn't feel quit right. Took it to a good shop that spealizes in this stuff.

Turned out I had bend another axel, bent wheel plate and bent the shaft its self.

$100.00 for the axle and seal, I replaced both rear Ujoint to be on the safe side and a couple hours labor and all's good again. Had my Auburn checked over while they had the pumpkin opened up.

Total cost was about 290

burb_n_coach · November 19, 2003

hello steve.... That vibration sure sounds like a u-joint. The speed is about right and all for the vibration to appear. I have had a few times that a vibration would show up like that and check the drive shaft for any side play only to find none. A short time later it had gotten worse and bought new joints and into the tear down found that one cap had gone dry. I'm not clear on how many miles are on the vehicle, but would look into the u-joints first given the speed in which it appears.