4 Inch Lift Kit - Chevy/GMC 3/4 Ton Truck/Suburban (77-87) 4WD

Important Notes

1. The 3/4 ton commonly came with a factory 56" eye to eye rear leaf spring. However, some were produced with a 52" rear spring. If ordering rear leaf springs, be sure to measure your factory rear spring before ordering.
2. If equipped with a factory front sway bar, a sway bar drop kit is available in the accessories section.
3. Some vehicle came with factory front dual shocks. If you wish to replace the factory duals, you must order the additional two auxiliary shocks in the options.
4. #001408 come with OE style rubber bushings installed.
5. Exhaust modification may be required to clear front driveshaft.

Features & Benefits

• Easy, 100% Bolt-on installation
• Glideride leaf springs to provide full lift height and increased capacity
• New steering arm maintains proper steering angles for improved handling
• Cast steel blocks and add-a-leaf provide level stance from front to rear
• Standard NX2 Nitro shocks with vehicle-specific valving for better control
• Upgrade to FOX 2.0 Performance Series shocks for maximum performance on and off-road

Recommended Tires & Wheels
(Trimming may be required)

• 35 x 12.5 with 15 x 8 and 3.5 in. Backspace

Take your 1977-1987 Chevy and GMC 3/4 ton truck or SUV to the next level with this 4-inch lift kit from BDS Suspension. Designed to improve stance, performance, and capability of the K20 and K25, this kit includes everything necessary to set your truck up right with clearance for up to 35" tires.

Up front the lift kit includes Glide-Ride leaf springs, 4" steering arm for steering correction, brake line brackets and precision tuned NX2 nitrogen charged shocks. In the rear this kit utilizes a high-strength lift block, longer u-bolts and a matching set of NX2 Nitro shocks.

Glide-Ride Leaf Springs

Built to outperform, BDS engineered the Glide-Ride leaf springs into a multi-leaf progressive spring rate design that provides a smooth ride with any load. This is accomplished with an exclusive triple-stage leaf spring design. Upgrading to BDS Glide-Ride leaf springs will provide flexibility throughout the suspension cycle.

Rear Lift Option

4 Inch Block Kit

• Included in the base system.
• Made of cast iron for high strength.
• Designed to provide correct pinion angles.

4 Inch Block Kit with Add-A-Leaf

• Help freshen up old worn-out factory leaf springs.
• Provides an additional 1 inch of lift.
• Includes new center pins.

Leaf Springs

• Eliminates any need for a lift block.
• Reduces axle wrap and creates a more controlled and stable feel.
• Multi-leaf progressive design for a smooth ride.
• Maintains factory payload weight ratings.

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