Maximum Motorsports Panhard Bar install with pics. Multiple threads inside. - Corral Forums

write up on installing and other links to threads on the panhard bar to get an understanding. A panhard bar helps keep the wheels centered in but they also keep the rear from moving side to side during cornering.

As far as the OP problem, couldnt tell you havent installed a bar yet. Are you doing it with the chassis loaded or the car up in the air? I would try checking on cornercarvers or just Maximum-Motorsports, they are supposed to be great with tech help over the phone