GM Rear Disc Brake Conversion Kit 5 Lug

The GM Rear Disc Brake Conversion Kit 5 Lug from Right Stuff Detailing is purpose-built for classic GM full-size truck and SUV owners seeking modern stopping power on vehicles manufactured between 1973 and 1991. If you're running drums in the rear, you understand the inherent safety and performance limitations: longer stopping distances, fade under heavy braking, and difficulty modulating power. This street-series conversion addresses those concerns by replacing outdated drum hardware with modern hydraulic disc technology, a modification that transforms both daily driving confidence and towing capability.

This conversion kit features 11-inch rotors paired with a single-piston caliper design, a proven combination that delivers proportional braking response without the complications of larger dual-piston setups. The single-piston architecture maintains compatibility with stock brake proportioning valves and avoids the need for expensive master cylinder or proportioning valve modifications—critical considerations when budgeting a retrofit. The 5-lug configuration ensures direct fitment to factory wheels and hubs, eliminating adapter ring complications. At 68 pounds, the complete kit is manageable for installation in a well-equipped shop, and the compact dimensions (10 x 10 x 18.5 inches) reflect efficient packaging of rotors, calipers, brackets, and all necessary hardware and fasteners.

Mechanics and DIY builders restoring C/K-series trucks, Blazers, Suburbans, and comparable GM platforms benefit most from this conversion. The street-series designation means it's engineered for road use rather than extreme racing duty, making it ideal for restorations, daily drivers, and weekend cruisers where reliability and fade resistance matter more than weight savings. Installation requires basic mechanical skill, access to hand tools, and patience for brake bleeding and caliper adjustment. This upgrade pairs effectively with front disc upgrades and modern brake fluid to deliver the balanced, responsive brake feel that original equipment simply cannot provide.