40-60mph Shimmy

[erieaddict]

I have a 2002 2500HD, 2WD, 6.0L, Extended cab, short bed, 91,000 Miles. I have noticed a shimmy or something out of balence felt in your hind end from 45-55MPH. Took the tires in today to check the balence. They balenced them and i still feel it and it is anoying to say the least. I am running 65# in the rear tires and 65# in the front. Shocks are Bilstiens and i have had them on the truck for around 5,000 miles. Any ideas would be greatly appreciated

[hubbycap]

Were they rotated?

[erieaddict]

Yes, front to back, back to front.

[hubbycap]

Yes, front to back, back to front.

 

Problem's still in the rear?

[erieaddict]

I am guessing it is in the rear. i feel it in the seat of my pants and not the steering wheel. I wonder if it could be drive shaft related?

[hubbycap]

Rotating 2 wheels only (eg LF to RR) will remove the only other tire/wheel possiblility from the equation. That way if you had a bent wheel on each axle it would put them together. Other wise it could be the driveline.

[zibzer]

I have a 2002 2500HD, 2WD, 6.0L, Extended cab, short bed, 91,000 Miles. I have noticed a shimmy or something out of balence felt in your hind end from 45-55MPH. Took the tires in today to check the balence. They balenced them and i still feel it and it is anoying to say the least. I am running 65# in the rear tires and 65# in the front. Shocks are Bilstiens and i have had them on the truck for around 5,000 miles. Any ideas would be greatly appreciated

 

Have the machanic check ball joints, tie rods, and U joints.

 

I had a bad ujoint on my old s10 that did the same thing. It didnt take much play in the ujoint for the shaking to start.

[DANMAN70]

Hey my truck had same problem from 45 to 60. Mine was my driveline. Had new u joints installed and balanced solved my problem. Maybe yours?