Superlift Suspension Lift Block 1.5″ for 1973-1987 K5/K10 GMC K15

Description

Product Overview

The Superlift Suspension Rear Lift Block Kit is engineered to raise the rear of classic 1973‑1987 Chevrolet K5, K10 and GMC K15 trucks by 1.5 inches. Constructed from heavy‑duty cast iron, each block offers exceptional strength and resistance to deformation under load. The package includes two painted cast‑iron blocks, four U‑bolts, all necessary nuts and washers, and a comprehensive, step‑by‑step instruction manual designed for both DIY enthusiasts and professional installers. With a compact footprint of 15.6 x 6 x 5.4 inches and a weight of 14.49 lb, the kit fits seamlessly into the existing suspension geometry while delivering a noticeable lift and improved stance.

Usage

This lift block kit is ideal for owners of vintage Chevrolet and GMC trucks who seek a modest rear lift to enhance ground clearance, improve tire contact, and achieve a more aggressive look without compromising ride quality. Whether you’re tackling off‑road trails, hauling heavy loads, or simply restoring a classic for daily driving, the 1.5‑inch lift provides the right balance of performance and comfort. The kit’s universal design accommodates a range of rear axle configurations, making it a versatile upgrade for both hobbyist restorers and professional shops.

Why Choose Us

Superlift Suspension manufactures every component in the United States using globally sourced materials, ensuring consistent quality and rigorous testing. Our limited lifetime warranty reflects confidence in the durability of the cast‑iron blocks and hardware. Each kit is backed by a dedicated support team ready to assist with installation questions, part compatibility, and post‑install adjustments, providing peace of mind throughout the vehicle’s life.

Key Features

• Heavy‑duty cast iron blocks deliver lasting strength and resistance to wear.
• Precise 1.5‑inch rear lift improves ground clearance and tire traction.
• Complete hardware package eliminates the need for additional purchases.
• Step‑by‑step manual makes installation straightforward for DIY or professional use.
• Limited lifetime warranty and U.S. manufacturing ensure reliable after‑sales support.

FAQ

Will this kit fit my 1975 Chevrolet K10?

Yes, the kit is specifically designed for 1973‑1987 Chevrolet K5 and K10 models, including the 1975 K10.

Do I need any special tools to install the lift blocks?

Standard hand tools such as a socket set, torque wrench, and jack are sufficient. The included manual outlines the required tools and torque specifications.

Can I use this lift kit with larger tires?

The 1.5‑inch lift provides additional clearance for modestly larger tires. For significantly larger tires, additional suspension modifications may be necessary.

Is the lift block compatible with both leaf‑spring and coil‑spring rear suspensions?

The kit is engineered for leaf‑spring rear suspensions commonly found on the specified Chevrolet and GMC models. It is not intended for coil‑spring setups.

What does the limited lifetime warranty cover?

The warranty covers defects in materials and workmanship for the cast‑iron blocks and hardware when installed according to the provided instructions. It does not cover damage caused by improper installation or external impacts.