Blind Driver2
Full Access Member
Edumacate me please, how can you tell which tire has slipped a belt? Reason for asking is that w/ my 1-ton dually (2wd) I recently noticed a vibration at speeds approaching 70mph, I don't normally go over 60 so I really have no idea how long the issue has been present. I run 235/85 General Grabber AT2 drivers that are few years old but w/ very little tread wear, steers are some generic 265/75 highway ribs that have the same age and mileage as the Grabbers but are worn down to half tread. I'm inclined to suspect the steers are the culprit since they're both too wide for the wheels they're on and they're worn down way more that the rear tires... Below 65mph I can feel absolutely nothing, truck rides as smooth as a old Lincoln luxobarge.
As long as the slipped belt isn't on the bottom, I can just run my hand around the tire. Or put it on a balancer and rotate it slowly. You'll see the tire rise and fall normally on the inside. If it's on the front, the steering wheel will move slightly left or right then straighten out as the slipped belt makes contact with the road. You could also have a bent rim. I have at least 3 of them on my dually. Vibrates at 70, but rides smooth at 55.
I'm looking for good aftermarket dually wheels. I'll probably replace the fronts in the Spring, the work on the remaining four at the next rotation.