No rubber bushings here. The upper and lower Total Chaos links have a urethane bushing at one end and a 7/8-inch Heim joint on the other. The urethane bushings are easily lubricated via a grease zerk. When I installed the grease zerks I made the mistake of turning them until they faced forward. On the upper links the grease zerks can be accessed from front or rear with a grease gun, but the lower links can only be accessed from the rear without being unbolted. I'll have to get another pair of zerks and re-install them into the lower links.