isiahstites

I have a 99' Z28 with 41k, I just bought it a few weeks ago. I have a vibration that I think is coming from the rear, I had the tires rotated and balanced. All tires balanced out good and had a tread depth of 8 out of 10 so the tires are practically brand new and in good condition. I can not feel any flat spots on the tires or any signs of cupping. When I leave in the morning and the tires are cold I can really feel what would be a flat spot at just 5 mph and below. When the tires are warm I do not feel it unless above 80mph. Is this a tire issue or could some old shocks and springs cause this as well as I am sure with the low miles on the car they were probably never replaced.


Thanks for the help!
Scott

6spdpewterZ

Check your driveshaft, make sure its balanced or that it does not have play.. That happened to me and ended up being just unbalanced rear tires.

isiahstites

Well the tires have been balanced.....but would I feel the drive shaft at 5 mph or less and then really not feel it strongly again until around 80??

6spdpewterZ

Maybe a bent axle or rotor?!?

isiahstites

You are scaring me now!! Bent rotor??? Huh?? Thanks for your help.


Scott

6spdpewterZ

you asked for help dude. the same thing happened to me. my drive shaft was unbalanced

isiahstites

I know I asked, I appreciate your input. I'll check the driveshaft.

Scott

Danny2tek

iTrader: (1)

I think my rear rotors are warped and I have a vibration coming from the rear also.