2004- current all cab styles Chevrolet Colorado GMC Canyon mid size with front coil spings Acessory kit. Includes bump stop extensions and upper A Arm spacers Allows increased suspension travel and reduces suspension joint angle Adjustable you choose the ride height fron 1.75 - 2.5 inches size truck Impact Resistant aluminium amd steel includes grade 8 hardwear Retains OE suspension components and Ride Quality SuspensionMAXX Limited Lifetime Warranty