I had a vibration in the frontof my 98 ranger 4x4 , thought it was that the tires needed balanced, got them bal and rotated now thw vib is in the back. The shop said the tires were "cupped" ? they still have good tread? Anybody heard of this? and if yes what the cause?

Thanks

Randy

 

ive had some that have cupped. it will vibrate the crap out of a vehicle. basically its due to not rotating them enough.

 

whats cupped mean?

 

Had same problem.It was bad shocks and alignment.