After picking up the first nail, I replaced all four tires this week. (overkill?
) My model takes a 205/75R14, and I replaced them with a set of Carlisle Radial Trail RH ST's. (Yes, I've read all the discussion on ST vs LT's)
I help out at a local auto shop, and that's where we swapped tires. I noticed there were no balance weights on the rims at all. After mounting the new tires, the balance machine demanded some serious (2.0) weights on each wheel.
With all the fears/scares/horror stories about wheels and tires, could it be that part of the problem might come from unbalanced wheels, shaking and vibrating? You can see the difference readily on the spin balancer.