[okiedokie]

James Stern,
It could'nt be a one off problem because I sent my original set back and they sent me a replacement set. Same problem.
hinoonaz brought up an interesting point. Cooper tire making Mickey Thompson's ?
When I bought this car 3 years ago, it had Cooper Cobra's on it and guess what. It had the shaking problem at about the same speed range. The difference ( or so I thought ) was that it had one damaged ( dinged ) wheel in the front . It had Ansen Sprints on then. I had the wheel repaired & straightened by Detroit Wheel. There again , I had multiply balancing's done on the tires and it was suggested to me that the problem was in the tire - belt separation.
So, there you go.... ?