[okiedokie]

I have been using the Mickey Thompson's S/R #6653 ( 26x10xR15LT) on the front and the #6654 (26x12xR15LT ) on the rear of my C.R. I sent the first set back after I could not rid get of the violent shaking ( felt though the steering wheel ) between 60-80 m.p.h.. I have the same problem with the second set of the same tire. This is after alignments, 4 wheel balancing's by different companies, replacing ft. wheel bearings ( nothing wrong with old set), a having my car put up on a hoist to be looked at and examined by more mechanics then I can recall. Nobody could find a problem with the suspension or the car.
Towards the end of this last summer I began Autocrossing it. Top speeds are generally below 70 mph so that shaking was not much of a problem. But these tires leave alot to be desired as far as handling and traction. I'm going to go with 17" Hoosier's for this years coming racing.
I have my car back into the shop this Winter for an upgraded suspension and rear end etc.. I told the guy that will be making these changes to the car about the shaking problem and He suggested I try some tires he uses on his autocross cars. So we first swapped out the fronts with his Hoosier's and I took the car for a spin . The shaking was now only felt only between 65-75mph. We then swapped out the rears and took it for a spin.
HALLELUJAH !!! The shaking problem WAS GONE. I took it up to 100mph. and No Shaking! I believe the problem was the tires all along. I don't think the rims had anything to do with it because these were brand new Team III's which required no added weight for balancing, before mounting the tires.
I will probably go with the B.F.Goodrich Radial T/A's (P235x60R15,P295x50R15) for my street tires this year. but only after I first try them out.