The tires are 35 inch mud tires, and I have put a lot of highway miles on them since I bought the jeep, so they are probably up to be rotated and balanced soon.
I think the tires may need to be replaced soon...what exactly does "cupped" mean? I was thinking of dropping down to smaller All Terrain tires to get better gas mileage because this is the car I drive on a daily basis, and I also because a friend told me AT's were better for sand and I will be driving on the beach alot this summer.
I will try to get my tires rotated and balanced in the next couple days. Thanks for the advice and quick reply.