I'm really surprised. I'm tougher on my truck than most people. I've had my Calmini arms for 2 years and only replaced the bushings once. I haven't greased them in six months and have no squeeks or shifting.

Do the guys complaining have white or black bushings? Calmini changed the bushings sometime last year for a self lubricating material.

Polyurethane will not work in this application, the bushing is a hard industrial plastic, not something that has an give.