I have a 1996 vette and i have already balanced my tires twice in 6 months and for some reason my wheel still shakes when im going 60 or higher mph.

 

Very common for tires with aggressive unidirectional tread to cup, once they have done so balancing will do little to correct the vibration. If you run your hand over the tread and feel a scalloped contour it will probably require tire replacement, did they mention anything when the tires were balanced? Tires that can be rotated are less likely to develop cupping, bad shocks can also contribute to the problem.

 

This may sound stupid but it's true.

If you have any heavy and thick dirt build up on the inside of the rim, it can cause balancing issues when some it starts to comes off after you've had your wheel balanced. It can begin to come off when you wash your car, or if you drive in the rain and upset the balance again.

How are your rotors? Any pedal pulsation when you brake at that 60 MPH plus speed?

 

Wheel alignment?
Tierod ends?
Balljoints?
Tire flat spots?
Tire presure sensors?

 

You could have a tire that is out of round. A good tire shop should have equipment to check a tire and shave it so that it is round. Another possibility is a tire that could have cords separating internally. Look for any indication of sidewall bulging or a tread pattern that looks differnat compared to the rest of the tire.

It could be also be a bent wheel.

Find a shop that has a Hunter GSP9700 balancing system. That machine will find most all problems with a wheel and/or tire.

 

This is NOT stupid at all.

I'm not saying that this IS tha cause... only one thing to check.
-Beppe-

 

Swap your frt tires with the back.

 

have the balancer guy take a peice of tire chalk and hold it lightly over the tread as he spins it on the balancer. it should leave a consistant mark on all of the tread. if there are spots with no chalk, those are flat spots or cupped spots.
also check the alignment. if u have some crazy toe or camber issues it will cause all kinds of issues.
also check the rims, pot holes can bend a rim and make it so they will never be abel to be balanced.
another thing is to check the kinds of wheel weights being used. if they are aluminum(type, not the material the weight is made of) they need to static balance the wheel where the weights are only on the inside outmost part of the rim. if they are using stick on weights they MUST absolutly must clean the inside of the rim with brake cleaner or non residue cleaner before applying the weights.
another thing(as if i havent said that enough) check the tire pressure. sounds easy but it can cause vibration if all 4 tires are off by 5psi.

this should help alot. you have to stand over these guys and make sure they know what they are doing. i worked in the tire/rim bussiness for 3 years, and always got vibrations to go away that were caused by the balance and tire roundness with these tips.

 

Could be your driveshaft u-joints...this happened on my old mustang.

 

...Check all 6 U-Joints and if bad replace with Spicer Heavy Duty non-greaseable replacements

 

At 60mph the car gets cold from the wind speed and starts to shiver?

 

I had a 87 924S porsche that did the same thing. It was a bent front rim.

 

the corvette never shivers the oponent does.

 

thanks for all the tips im going to check all that as soon as possible, because ive only hade my tires for 5 months.oh also my rims are brand new too.

 

Altho it helps to some degree to have relatively new tires and relatively new rims, it doesn't eliminate the possibility that either one MAY have a problem... it only takes one pothole, one bump to the suspension, one bushing wearing out, etc. New does not = perfect. It just means it's new. That's why a lot of new things have warranties and guarantees.

All the above advice is good stuff to check, as you said. And by the way, what equipment is your "installer" or "balancer" using in the last 6 months?

PS. YOu can find shops in your area ( where is that?) that have a Hunter 9700 Road Force Balancer by going to google; there's a Hunter site and it'll list by zip.

 

Did You Replace U-joints At About The Same Time As Tires. If Driveshaft Reinstalled 180 Degrees Off From Original, It Will Vibrate Like Tires. With Mine, It Started At About 70. I Rotated The Driveshaft And It Was Gone.

 

I have had the same issue before, several balances, replaced ball joints etc. Still didn't fix. Had it balanced again on a HUNTER machine (road force), and it corrected the problem! Make sure you get it balanced on a Hunter and then go from there. With large tires, it needs this "road force" applied to make sure they are balanced at speed and with a load.

 

I was searcing the forums and found this. Did you ever solve your problem? i am curious if it was the drive shaft u joints.

 

 

I'm surprized noone else has said to check your bearings, but I'd do so ASAP.