I bought them here from Revain 21 months ago and they already need to be replaced. Pulling out the old bushings and installing the new ones isn't easy, even with the right tools. I'm disappointed. I probably lost 15,000 miles on my expensive BFG KO2 tires due to excessive wear. I am disappointed and will not install them a second time. Update 08/18/2019: Having now replaced them with whiteline sockets, I see that they are so badly designed that they always fail quickly. They failed so quickly I figured it couldn't be the bushings and I replaced all the other pivots and bushings on the front of my truck to fix the wobble and braking issues caused by these junk parts. DO NOT INSTALL THIS!