Tire Balancing? - ZR-1 Net Registry Forums

Racinfan83 · 09-24-2013

Another question for Ya'All. Car has a pretty bad vibration over 55mph. Feels like tires out of balance. Took it to one local Chevy dealer here a while back. They balanced tires. Still had vibration. So I took it to another Chevy dealer here last week and had em do it again. Guy said a couple of them were off by 1/2oz. SO - drove it to Chicago and back this weekend and it still shakes like crazy. It's not a harmonic vibration like a loose u-joint or driveshaft would make, and not a side-to-side shaking of the steering wheel either. It is more of an up and down vibration that feels to me like bad tire balance. Tires are Nittos with probably 90% tread - no uneven wear I can see.
Is there a "trick" or special machine required to get these big wheels balanced? I am taking it back to the second dealer (most recent) next Monday to have them redo it. I know on my little Honda daily driver with normal tires - they had to do them 3 friggin times before it was right???

09-24-2013	#1
Racinfan83 Join Date: Apr 2013 Location: Eastern Missouri Posts: 773	Tire Balancing? Another question for Ya'All. Car has a pretty bad vibration over 55mph. Feels like tires out of balance. Took it to one local Chevy dealer here a while back. They balanced tires. Still had vibration. So I took it to another Chevy dealer here last week and had em do it again. Guy said a couple of them were off by 1/2oz. SO - drove it to Chicago and back this weekend and it still shakes like crazy. It's not a harmonic vibration like a loose u-joint or driveshaft would make, and not a side-to-side shaking of the steering wheel either. It is more of an up and down vibration that feels to me like bad tire balance. Tires are Nittos with probably 90% tread - no uneven wear I can see. Is there a "trick" or special machine required to get these big wheels balanced? I am taking it back to the second dealer (most recent) next Monday to have them redo it. I know on my little Honda daily driver with normal tires - they had to do them 3 friggin times before it was right??? __________________ [LEFT][SIGPIC][/SIGPIC][/LEFT] [CENTER][COLOR=Indigo][SIZE=4][I][B] Now Sold 1990 ZR-1 #2093, Black on Black..[/B][/I][/SIZE][/COLOR][/CENTER]