Racewill 3Pcs Front & Rear Brake Lines 89340S/89335S for 1971-1991 Chevy GMC C/K with 4-6 Lift

Overview

Upgrade your braking setup with the Racewill 3Pcs Front and Rear Brake Lines kit, designed for lifted Chevy and GMC trucks from 1971 to 1991. This extended line set is crafted to fit 4 to 6 inch lifts, offering a routing option that keeps lines properly guided even when chassis height changes. Rather than simply replacing OE parts, this kit aims to maintain pedal feel and braking response as your suspension grows taller, giving you a reliable upgrade option without overpromising results.

Key benefits

• Braided stainless steel exterior shields the lines from off road debris, rocks and mud, helping durability in rugged environments.
• The extended interior length minimizes the risk of line expansion under pressure, contributing to steadier braking feel during heavy loads or climbs.
• Included washers are suitable for bolts on both ends, simplifying installation and reducing the need for extra parts.

Fits and specifications

• Compatibility: Chevrolet C20/K10/K20 Pickup 1971-1987, C20/K10/K20 Suburban 1971-1991, K5 Blazer 1971-1991 (not for 1984 K5 Blazer); GMC C15/C25/K15/K25 Pickup 1971-1987, C15/C25/K15/K25 Suburban 1971-1991, Jimmy 1971-1991.
• Replace OE Part Number: 89340S/89335S. Front Brake Line Length: 24 inches. Rear Brake Line Length: 18.3 inches.
• Copper Washer I D: 0.4 inches. Stainless Gasket I D: 0.62 inches.

What you get and how to install

The braided exterior provides enhanced protection against trail hazards, while the included washers help secure bolts on both ends. The kit is designed to integrate with existing braking hardware and aligns with rear and front line routing expectations for older GM platforms.

Tip: When upgrading to extended brake lines, inspect surrounding components for wear and consult your shop if you are changing ride height or wheel travel significantly. This kit suggests a careful re-check of line routing after installation to ensure there is no rubbing or contact with moving parts.

Real-world use scenarios

• Owners of lifted Chevy or GMC C/K trucks may experience improved line routing and reduced line stress under flex.
• Off-road enthusiasts may appreciate the braided exterior’s resistance to debris while traversing rocky terrain or muddy trails.

Note: This product is a targeted upgrade for specific model years and configurations. It offers potential improvements in line rigidity and routing, but results may vary based on vehicle setup and driving conditions.