BDS 4 Inch Lift Kit w/NX2 Shocks for Chevy Trail Boss or GMC AT4 1500 (20-25) 4WD Diesel (1807H)

Take your Chevy Trail Boss and GMC AT4 1500 truck to the next level with 4-inch suspension lift kit by BDS. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 35" tires.

This kit takes advantage of BDS's tried and true high-clearance design for improved ground clearance, strength, and offroad protection while correcting suspension and steering geometry for great on-road handling characteristics. Up front, the kit utilizes top mounted strut spacers, upper control arms, high-arched 1/4-inch thick steel crossmembers along with a multipiece differential relocation brackets and heavy duty skid plates built for offroad protection. Steering geometry is corrected at the new taller ride height with CNC-machined ductile iron steering knuckles and replacement tie rod ends allowing for ESC system compatibility. These combined with the provided sway bar drops, bump stop extensions, brake line brackets, CV spacers, supplied hardware and more provide a comprehensive front suspension lift ready for whatever you throw at it.

In the rear BDS offers a heavy duty lift block to lift and level that stance. The lift block installs in place of the stock block and retains ride quality and load capacity. Also for the rear are new u-bolts, brake line brackets and precision tuned NX2 Nitro or premium FOX 2.0 Performance Series shocks.

HD Upper Control Arms (UCAs)
Built for strength, performance and increased travel, these upper control arms are ready to bolt-in with most leveled/lifted trucks. They use 1.5" OD x .120-wall tubular construction with an indexed ball joint cup to correct the ball joint positioning allowing additional down travel and camber adjustment. At the frame mounting ends are durometer-specific rubber bushings for maintenance-free operation while at the other end a quality greaseable ball joints for smooth, quiet operation and superior durability. Arms are finished in a durable black powder coat with a billet aluminum dust cap ready for installation right out of the box.

High Clearance Crossmembers
BDS maximizes ground clearance with their heavy duty 1/4-inch thick laser cut perfect fit crossmembers. Paired with a front skid plate system that bolts together to create a rigid subframe while adding extra protection.

Heavy Duty Steering Knuckles
BDS corrects steering geometry at the new taller ride height using a pair of high-strength, CNC machined ductile cast iron steering knuckle design to work with replacement tie rod ends to maintain steering angles for proper function and ESC compatibility.

Features & Benefits

High clearance crossmember design maximizes ground clearance
Robust steering knuckles maintain ESC system compliance
High-strength replacement upper control arms provide durability and serviceability
HD skid plate system improved offroad protection
Multipoint differential relocation brackets to secure the front axle and improve CV angles
Factory Protection Plus drivetrain warranty included
Recommended Tires & Wheels

(Trimming may be required)

34 x 12.5 with 17 x 9 and 4.5 in. Backspace
34 x 12.5 with 18 x 9 and 4.5 in. Backspace
35 x 12.5 with 20 x 9 and 6.25 in. Backspace
Rear Shock Option
NX2 Nitro Series
Nitrogen-charged
Twin-tube design
10-stage velocity-sensitive valving
Dual-welded ends for increased strength
1-3/8-inch high-flow piston
Self-lubricating seals
Silver powder coat finish
FOX 2.0 Performance Series
2-inch Impact extruded aluminum body
Internal floating piston (IFP) monotube design
CNC machined 6061-T6 aluminum mounting ends
Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
Race-developed high-flow piston design
Application-specific valving to maximize performance
Long-lasting clear anodized finish