Took a while to install but well worth it. The kit does fit the double cab regardless of what RCX says on instruction book. Also, did not have to take apart the strut at all, contrary to the instruction manual again. Spoke directly to RCX about a missing preload spacer that is supposed install into the strut. This has been discontinued for the Silverado. One more thing.... I’m running 35x12.5x18 wheels w 2” spacers and absolutely no rubbing on any of the lift components. Love the lift!!!