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

Built for classic truck owners who want commanding ground clearance without sacrificing the original geometry of their rig. This BDS 4-inch lift kit for 1977–1987 Chevy and GMC 3/4-ton trucks, Suburbans, and full-size Blazers brings you up and over the trail while keeping your driveline angles true. Choose between block-kit simplicity or leaf-spring setups — both preserve the character of your classic while letting you run bigger rubber.

Installed and serviced at Road Runner Wheels & Tires. Most kits go in the same day. Call (678) 400-6467 to schedule.

What you get up front

• Front coil-spring towers — engineered to maintain factory caster geometry and suspension travel, so your steering stays responsive and your front end doesn't bind.

Out back

Rear leaf springs carry the load with traditional 3/4-ton capability. Block-kit variants stack under the existing springs for a straightforward 4-inch bump; leaf-spring packages replace them entirely for a cleaner build and consistent articulation from bump to droop.

Pick your shocks

• BDS NX2 Nitro — smooth, durable everyday performers that handle highway cruising and moderate off-road duty without fuss.
• FOX 2.0 Performance Series — adjustable damping and speed-sensitive valving for drivers who want tuned handling on pavement and forgiving compliance over rocks and ruts.

Important notes

• 4-inch lift is the maximum tire-clearance gain for this generation without modification to body panels or suspension geometry.
• Rear block-kit variants work with your stock leaf springs; leaf-spring kits replace them entirely — confirm your preferred setup before ordering.
• Driveshaft angle and transfer-case geometry remain factory-correct across all variants, preserving long-term drivetrain durability.

Why customers pick this at Road Runner

• BDS engineering and lifetime warranty backed by local technicians who specialize in classic truck suspension.
• Professional install in our shop by techs who assemble these kits every week — no guesswork, no comebacks.
• Exact fitment for 1977–1987 Chevy and GMC 3/4-tons, Suburbans, and full-size Blazers — no modifications needed.
• Block-kit or leaf-spring choice lets you match budget and build vision without compromise.

Ready to build it? Call (678) 400-6467. Hablamos Español.