These kits are where drivetrain modifications start. Your front driveshaft may need either lengthened or a spacer, a steering arm is a must, and the brakelines will need to be lowered with the included brackets or longer ones purchased. You may need to lower the transfer case to correct driveshaft angles. These kits bolt right on with normal hand tools. These suspension systems are available as a KIT, with rear blocks, or as a SYSTEM that features new replacement rear springs.Recommended Maximum Tire Size:37x12.50 on 8" wheelsAdditional Required Components: Steering Arm