Rear Disc Brake Conver sion 88-98 GM K1500

The LEED Brakes Rear Disc Brake Conversion Kit for 1988–1998 GM K1500 trucks delivers superior stopping power and modulation compared to factory drum brake systems. This single-piston caliper conversion uses 11.65-inch iron rotors to provide consistent, fade-resistant braking performance across a wide range of driving conditions and payloads. Designed specifically for full-size GM trucks of this generation, the kit replaces rear drum brakes with hydraulically operated disc brakes, a proven upgrade path for operators who demand predictable, repeatable brake response under variable conditions.

The conversion centers on a robust single-piston design paired with naturally finished iron rotors—a time-tested combination that prioritizes thermal mass and heat dissipation over weight savings. Cast iron rotors are preferred in applications where towing, hauling, or frequent brake cycling demands high thermal capacity. The 11.65-inch rotor diameter is sized to fit K1500 trucks without frame modification, maintaining OEM suspension geometry and compatibility with existing brake lines and proportioning valves. Installation integrates into the factory brake system architecture, allowing the rear conversion to work in concert with your existing front brakes and ABS system where equipped.

This conversion is ideal for K1500 owners who operate their trucks in demanding service—heavy towing, off-road recovery, or frequent mountain driving where drum brake fade becomes a liability. The shift from drums to discs improves pedal feel, shortens stop distances, and eliminates the maintenance burden of adjusting drum brakes. Whether upgrading a work truck or restoring a classic K1500 with modern braking efficiency, LEED Brakes' conversion kit addresses the performance gap between factory systems and contemporary stopping standards.