New Tires Installed, New Vibration

[pannoner3]

Finally got around to getting the truck to a different GM dealer. They diagnosed it as a bad CV axle on the driver's side(passenger side had been replaced in August). Good news is it's CPO covered and I picked the truck up today. Not so good news is there's still a vibration, although it's not as severe.

So to recap: both front CV axles have been replaced, new tires mounted and balanced (not road force balanced though), alignment performed. I guess my next step is the road force balancing? And then....

 

[mountie]

Finally got around to getting the truck to a different GM dealer. They diagnosed it as a bad CV axle on the driver's side(passenger side had been replaced in August). Good news is it's CPO covered and I picked the truck up today. Not so good news is there's still a vibration, although it's not as severe.

So to recap: both front CV axles have been replaced, new tires mounted and balanced (not road force balanced though), alignment performed. I guess my next step is the road force balancing? And then....

yea, to repeat myself, the road force balancing I just did 3 weeks ago is a game changer. Smooth as silk at any speed.

 

[jfoj]

Make sure there is not a bent wheel as well. Usually the wheels bend on the inside portion of the rim. Road Force balancers will not always pick up bends and you cannot balance out vibration from bent wheels that cause low spots on the tire out.

Simple test, spin each wheel and watch with your eye, if you can see it you can feel it. You can do this yourself, you just need a reference point to watch against. A good tire guy will look closely for bent wheels, your average tire guy will only do what the balancer tells him to do. I have seen the Road Force machine upper arm wiggling when the road force balancer shows the wheel/tire assembly is balanced!! Go figure.