I've got a 92 22re pu. My truck starts shaking randomly for 1-5 seconds at a time when going over 30mph, then just stops as suddenly as it started. It usually happens when I let off the accelerator, but not always.

I did just from my winter tires to summer tires a month ago, but never had this problem before and I would think if it were the tires it wouldn't come and go like it does.

I've tried searching other threads, but none of them refer to a shaking that comes and goes randomly. Any ideas would be appreciated.