!991 Gmc Suburban 3/4 Ton

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We have a 1991 Gmc Suburban 3/4 ton, have a wobble in the front end. It started when braking now sometimes it will start wobbling while driving. Checked everything on the front end, repacked the wheel bearings and put new rotors on! Still have the same problem and getting worse, the left tire hasd more wear on the outside of the tread than the right side. Any tips would be great!

[UndeadGMC]

Does it "wobble" at all speeds and all the time, even on the highway? Also do you mean the tire wobbles, the steering wheel, or the whole truck? Have you had a tire replaced or fixed recently?