[MrG]

When I?m driving 75+ I notice my ZR2 shakes a tiny little bit, not too much. I?m not sure if it?s cause for concern, or normal due to the tires and off-road suspension. Anyone else notice this?

 

[nfmisso]

mine is rock solid (take your hands of the wheel [not recommended]) right to max speed (limited to 98mph by computer).

I do not have the stock Goodyears; I have Kenda KR29 M/T LT245/70R17 tires.

 

[fondupot]

Do you feel it in your seat, or in the steering wheel.

Could be a tire slightly out of balance. If you feel it in the steering wheel, that leads to a front wheel/tire. If you feel it in your seat, that leads to a rear wheel/tire.

 

[alexneil]

Had the exact same problem at that exact speed range. My front passenger tire was slightly out of balance. The dealer should be able to take care of it for you.

 

[MattFL]

Get your tires road force balanced. My old truck had endless balance problems and the road force balance was noticeably better. They balance the tire under load, and the machine can tell if the tire isn't mounted perfectly to the rim and the tire guy can then unmount and remount the tire to make it right.

 

[ZkR2]

Ditto to tires. Took mine off road and had a slight shake after, went away after continuous highway driving. Held steady with no shake right to 95mph. Would take it to dealer for a fix. Off road tires generally are easy to knock off balance compared to lower profile sedan tires especially with the mud terrain type design.

 

[G2SKIER]

Definitely tires. I’m running 33” 10 ply mud tires on aftermarket wheels with zero vibration at 90+. A good road force balance goes a long ways.


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[Wolfman01]

Another for the tires. Mine did the same thing. Had them rebalanced and problem is solved.

 

[Hunter62]

Probably a tire, I can see the rears in my mirrors, to see if bouncing, front, probably do not want to stick your hear out the window at 75mph.

mine was rock solid this weekend for 850 miles at 75+

 

[MrG]

Quick question to add to this, long story short dealer wait time is ridiculous, do I only need a balance of the wheels or alignment too?

I can take it to Costco, as I already have a trip over and they can do the rotation and balance for a twenty some dollars, they don't do alignment though.

 

[KMW]

Just balance. Alignment will not cause vibration.

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