6 Inch Lift Kit | Rear Springs | Chevy/GMC 3/4-Ton Suburban/C20/K20 Truck/C25/K25 Truck (73-76)

6 Inch Lift Kit with Rear Springs for Chevy/GMC 3/4-Ton Suburban, C20, K20, C25 and K25 trucks (1973–1976) is engineered to transform your classic workhorse into a capable, confident machine. This kit focuses on the rear suspension, delivering a dramatic height increase that opens the door to bigger tires, improved departure angles, and a more commanding road presence—without compromising the rugged DNA these trucks are built on.

Why this rear-spring lift stands apart

• Dedicated rear-leaf design—specifically tuned for 3/4-ton GM platforms, so you gain height and load-support without sacrificing structural integrity.
• Substantial stance with practical gains—a true 6-inch rear lift that broadens tire options and improves off-road clearance for uneven terrain, ruts, and gravel.
• Heavy-duty construction you can count on—built to handle the added leverage from larger tires and heavy payloads typical of Suburban, C20, K20, C25 and K25 fleets from the era.
• Preserved chassis fidelity—designed to work with the factory geometry so you maintain predictable handling and reliable ride characteristics for daily driving and weekend adventures.

Who this kit is for

• Owners restoring or preserving 1973–1976 GM 3/4-ton trucks who want an authentic, taller stance.
• Off-road enthusiasts seeking improved ground clearance for rugged trails while keeping the truck’s robust payload capacity.
• Garage-builds and small shops focusing on period-correct suspension upgrades for Suburban, C-series and K-series models.

What you gain in real-world use

• Terrain-ready clearance to tackle dirt roads, woodland trails, or industrial sites where ground clearance matters.
• Versatile tire compatibility allowing larger diameter tires that enhance traction, stability, and a bold, rugged silhouette.
• Improved loading versatility—the rear lift helps with loading and unloading gear, tools, and equipment when the truck doubles as a work vehicle.

Installation and compatibility notes

For a safe, reliable upgrade, have this 6 inch rear-lift kit installed by a qualified professional. Height changes can affect steering, braking, and driveline angles, so a proper alignment and inspection are essential. After installation, expect to review shock compatibility, brake-line length, and potential driveline adjustments to ensure smooth operation and long-term durability.

Care, maintenance, and tips for best results

• Inspect leaf springs and mounting hardware regularly, especially after off-road use or heavy towing.
• Keep an eye on ride height consistency; extreme loads and highway speeds can influence spring seating over time.
• Pair this rear lift with appropriate front-end adjustments if you pursue a balanced, level stance and optimal tire contact with the road.

Engineered to honor the legacy of Chevy/GMC 3/4-Ton trucks from 73–76, this 6 Inch Lift Kit with rear springs delivers a purposeful combination of height, capability, and vintage appeal. Whether you’re recreating a period-correct build or boosting an everyday hauler for modern use, it provides the stability, strength, and stance this iconic era demands.