05 Sierra

[Jamci]

Around 40mph - 50mph I get, what I can only describe as wheel hop in the front end. It's almost like riding on those rumble strips on the side of the highway. If I give it a little gas or let off the gas it stops. It seems to happen when I'm going up an incline.

I took it to the service dept but they said they couldn't find anything, rebalanced my tires and sent me on my way.

Any thoughts?

[maxwedge]

Welcome to AF, very tough to pin this down with a road test and on site inspection, possible u joints.

[karmakanek]

Rotate your tires front to back and see if the problem goes away, I think you have a defective tire.