BDS 6 Inch Lift Kit | Chevy/GMC 3/4 Ton Suburban (1988-1991) 4WD | 4" Block Kit w/ Add-A-Leaf | NX2 Nitro Series

Rear lift is achieved via a 4-inch cast steel block kit with Add-A-Leaf, providing a level stance front to rear without replacing factory rear leaf springs. Shocks included are NX2 Nitro Series: nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, 1-3/8-inch high-flow piston, self-lubricating seals, and silver powder coat finish.

Overview

This 6-inch lift kit from BDS Suspension is designed for 1988–1991 Chevy and GMC 3/4 ton Suburbans (4WD), delivering improved stance, performance, and capability with clearance for up to 36-inch tires. Up front, the kit includes Glide-Ride leaf springs, a 4-inch steering arm for steering correction, brake line brackets, and precision-tuned shocks. The rear lift is available in two configurations: a block kit with Add-A-Leaf or full replacement Glide-Ride leaf springs. Shock options include NX2 Nitro Series as standard, with an upgrade path to FOX 2.0 Performance Series shocks.

Features

• 100% bolt-on installation
• Front Glide-Ride leaf springs provide full lift height and increased capacity via an exclusive triple-stage, multi-leaf progressive spring rate design for a smooth ride under varying loads
• 4-inch steering arm maintains proper steering angles for improved handling
• Cast steel blocks and Add-A-Leaf option provide level stance from front to rear
• Standard NX2 Nitro shocks with vehicle-specific valving for better control
• Optional upgrade to FOX 2.0 Performance Series shocks for maximum performance on and off-road

Specifications

• Lift Height: 6 inches
• Tire Clearance: Up to 36 inches
• Front Lift: Glide-Ride leaf springs with 4-inch steering arm and brake line brackets
• Rear Lift: 4-inch block kit with Add-A-Leaf or Glide-Ride replacement leaf springs (see variant options)
• Shocks: NX2 Nitro Series (standard) or FOX 2.0 Performance Series (upgrade)
• NX2 Nitro Series: Nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, 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, 5/8-inch hard chrome plated heat-treated alloy steel shaft, race-developed high-flow piston, application-specific valving, clear anodized finish
• Glide-Ride leaf springs include new center pins and maintain factory payload weight ratings

Installation

• Estimated Time: 6 hours
• Difficulty: Moderate
• Special Tools Required: Ball Joint Separation Tool, Cut-off Tool

Important Notes

• The 3/4 ton commonly came with a factory 56-inch eye-to-eye rear leaf spring; however, some were produced with a 52-inch rear spring. If ordering rear leaf springs, measure your factory rear spring before ordering.
• If equipped with a factory front sway bar, order the front sway bar shackle link kit listed in the accessories section.
• Some vehicles came with factory front dual shocks. To replace the factory duals, you must order the additional two auxiliary shocks in the options.
• #001408 comes with OE style rubber bushings installed.
• Exhaust modification may be required to clear the front driveshaft.