2007+ GM 1500 2.5 Series 4-6.5" Lift Front R/R Coilovers (883-02-059)Description Featuring exclusive internal bypass technology; this allows oil to flow around the piston at some points of the stroke while creating pressure at other points. Combining a race developed shock piston, internal bypass, and Dual Speed Compression adjustment to allow fine tuning for weight, terrain, and speed. Dominate any terrain with the brute strength of aluminum bodies, cactus cooler reservoirs, and 7 8 shafts with redundant seals, all