Incredible articulation No welding required True 4-link setup with new, longer travel arms Prevents binding and rear-steer Coil correction plates correct the rear coil spring angle by 10 degrees, allowing them to function more effeciently. Gain unparalelled axle flex while keeping pinion angles optimized X-Flex control arm features: durable OEM style rubber bushings. Flex joints are fully rebuildable. Flex joints feature a massive 2.5″ diameter body and 1.25″ thread. Fully greasable.