Rear end lurching side to side....

[CHRISP357]

One of my first posts was a very similar problem. I could nearly change lanes with throttle change. Stand on it and it would change direction, chop the throttle and back it came.
Slightly mismatched tired. New sneaks and the problem was gone. Incidentally, 02 S model.

[Jthoms1]

I'm going to head out and check everything shortly. I had a thought and did some research last night. Given the fact I installed the "S" suspension my sway bar sizes changed. I ordered 19.8mm bushings for the rear and recall them seeming a bit to not fit the way I though they should. I can't recall what I put on the rear size wise. Last night on Pelican I saw it actually calls for 19.2mm. I ordered them and they will be hater later this week

My question...if the rear bushings are the wrong size could that cause it?