TeraFlex JT: 3.5in Performance Spacer Lift Kits include just the basic lift components only and doesn’t have the drivability of a full suspension system. Requires front control arm Sport Brackets, or longer front lower control arms, or adjustable control arms, and/or an adjustable front track bar to correct suspension geometry. Does NOT include shocks. We recommend Falcon Performance Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability. 3.5in Performance Spacer Lift Kits are offered without shock absorbers. Falcon Performance Shocks are available separately.