Skyjacker Suspension TJ401BLT 4 Inch Lift Kit with Dual Rate Long Travel Coil Springs

The Skyjacker Suspension TJ401BLT 4 Inch Lift Kit is a component box lift kit built around dual rate long travel coil springs. It raises the vehicle and includes the supporting suspension and driveline components needed to keep geometry, handling and ride quality in check.

Dual Rate Long Travel Coil Springs: Skyjacker engineered these as a progressive, 2-stage variable rate coil. The first stage, the Flex Rate, gives a comfortable ride and lets the spring flex and expand during full articulation. The second stage, the Ride Rate, engages only after compression past the Flex Rate, for a smoother ride. The kit includes a pair of front and a pair of rear coil springs.

Key Features:

• Longer front and rear lower control link arms correct caster angle. Both pairs are fixed length, with pressed-in HD OEM style vulcanized rubber bushings at each end.
• Front and rear bump stop spacers bolt in between the upper frame and the OEM bump stops, keeping suspension travel safely in check.
• Front and rear extended length sway bar end links allow full articulation as the suspension drops (full droop). They include Skyjacker installed pressed-in HD OEM style rubber bushings.
• A tubular transfer case lowering kit helps avoid driveshaft vibration by correcting driveline angle while retaining as much ground clearance as possible.
• A drop pitman arm reduces the operating angle of the drag link, bringing it back into correct alignment with the track bar.
• A rear track bar lower axle mount bracket mounts directly to the rear axle housing to correct track bar angle. This re-centers the rear axle and gives better handling and a lower roll center, which means less side-to-side sway.
• Comes complete with bushings and high-grade mounting hardware.