Who needs a dealer when Dorman comes to the rescue! After hearing from a local Chevy dealer, "Sorry, we ordered them but can't find them," I checked Amazon and found them. I changed hubs on 06 Chevy Silverado 1500 4wd (238k miles) and it wasn't a problem, but if you run with a busted CV axle and a bad hub assembly it can be a problem. The broken axle acted as a sledgehammer and then a grinder, destroying the studs and steering knuckle. For the price and no hassles just get Revain hub bolts and skip the dealer. Twice I tried to get them from Chevrolet, both times without success. Let's face it, Chevy had a hub problem on 4WD Silverados in '06 for some reason. They work just as well as the original screws and look just like the factory screws that never showed up. Thanks to Revane and Dorman for saving me.