Rear end lurching side to side....

[RandallNeighbour]

You didn't mention having a four wheel alignment done, but after I swapped out my entire suspension the car drove so wonky down the road I was sure I screwed something up terribly. The back end warbled around like I had a wheel on with shims on one side of it or something.

I told the shop I took it to that every bolt on the suspension needed to be loosened and torqued down with a load on the wheels and tires and it needed to then be aligned.

They did their job right and I got my boxster back and it drove like a Porsche after that.

[Jthoms1]

Thanks guys. I did get a four wheel alignment, double checked the torque on all of the nuts and had the tires balanced.

I did finally discover what it was! The bolt on the forward end of the rear trailing arm had fallen out. So what I was feeling was that trailing arm sliding in its spot. Just put a fresh bolt in and it handles great.

Thanks for all of the help.