Join Date: Jul 2016
Thanked 5 Times in 4 Posts
iTrader Score: 0 reviews
shake/wobble when driving after new tires
I am at my wits end with this and so is the tire shop. I need someone who can help me think critically about this out of the ordinary problem.
I have a 50 hour drive ahead of me, so I went and bought some new tires. The dealer talked me into General Grabbers. I've been running Firestone Transforce HT tires with no problem until now. My rims are aftermarket aluminum. The old tires were very evenly worn, as good as you could ever ask for. The tire place sent me off with one wheel loose... the lug nuts were only started by hand, never tightened up. They sent a truck and got them tightened up and I went on my way. The truck shook and vibrated. I took it back and they re-balanced them, same results. Repeat this a few times, then they tell me it must be my rims, that my center hub doesn't match the hub on my truck and how my rims are hard to deal with because of how they were made, etc...
So, I took it to another shop that specializes in rims. They said my rims were fine and they are lug centering wheels, not hub centering wheels, so the hub size doesn't matter (which I already knew), and the one was damaged some by running loose, but not out of round. They balanced the tires and sent me on my way... still shaking. I jacked it up in the back yard and put it in drive and checked the rim runout with a makeshift scribe. Nothing. I put my hand on the tire tread and could feel a good bit of hop... probably 3/16" or so. I took the tires back to the place I bought them and told him to take them off and put some Michelins on. He ordered them and I went today to have them put on.
At first they felt pretty smooth with some vibration around 58mph. As the day went on, it got worse to the point of the back of my passenger seat bouncing. Brought it home and jacked it up again and checked side-to-side runout and found nothing alarming. Checked eccentric runout, nothing there either. The wheels are tight, the bearings are brand new a few weeks ago (preventively, done while I had the rotors off for a brake job). Very little play in the front end. I'm at a loss. Now I can drive it and feel it a tiny bit and it seems like it will be tolerable, but then after a while it gets bad and doesn't go away after it starts. It seems to change in frequency and intensity in relation to vehicle speed but not consistently. Sometimes when I brake I feel it in the front even harder but not all the time. I'm usually pretty good at solving these kinds of things but this one is kicking my butt. I'd be glad for any suggestions.
96 12 valve club cab lwb 2500 2wd 250k 3.55 gears, 265/75-r16, OFV at 30, no plate, AFC full fwd, HX35 at 35 psi boost, Timing~16.5, 5x11s, 2790 BHAF, Banks hi-flo muffler, 3.5" exhaust, Deleted prefilter & heater, mildly built 47re, billet single TC. KDPF