PowerStop 451R Drum Brake Shoe - Rear

Rear Brake Shoes for Heavy-Duty Drum Applications

PowerStop 451R rear drum brake shoes are built for drivers who need consistent stopping performance from a drum brake setup. This Autospecialty brake shoe set uses a semi-metallic friction formula with a post-cured finish for shorter break-in time and stronger initial braking response.

Compatible With a wide range of Chevrolet, GMC, and Dodge rear drum brake applications, including Express 2500, Savana 2500, C/K-series trucks, Suburban models, and P30/P3500 chassis vehicles.

Key Features

• Semi-metallic friction material for dependable rear drum braking
• Post-cured lining helps reduce break-in time
• Precision cam ground for proper drum fitment
• Chamfered edges help reduce noise and chatter
• Riveted friction material attachment
• 100% asbestos-free and copper-free construction
• New steel backing coated to resist rust
• Rear application for drum brake systems

Autospecialty Brake Shoe Line

The PowerStop Autospecialty brake shoe line is focused on OE-style fit and consistent performance for everyday service and fleet use. Part number 451R follows that approach with a semi-metallic compound, accurate shaping for the drum, and corrosion-resistant steel construction for long-term durability in rear brake service.

This part cross-references Raybestos Brakes 451PG and Wagner Brake Z655R for the same application.

Detailed Description

PowerStop 451R is a rear drum brake shoe designed for vehicles that use riveted drum linings and specific large-diameter rear brake assemblies. It is a direct-fit option for many Chevrolet Express 2500 rear brake jobs, GMC Savana 2500 rear service, and older Chevrolet and GMC C/K, R/V, and P-series platforms. The semi-metallic friction material is post cured to improve braking response after installation, while chamfered edges help control noise during operation.

For buyers searching for rear brake shoes for 1996-2002 Chevrolet Express 2500, 1996-2002 GMC Savana 2500, or 1988-2000 Chevrolet C2500 and GMC K2500 rear drum brakes, 451R provides a fitment-specific replacement built to OEM standards.

Common Problems This Part Can Address

• Reduced rear braking performance from worn drum shoes
• Brake noise or chatter from uneven shoe edges
• Rust on backing plates from uncoated steel components
• Long break-in time after brake service
• Fitment issues when replacing riveted rear drum shoes

Installation Notes and Tips

• Verify rear drum size and riveted shoe configuration before ordering.
• Inspect drums for scoring, taper, or heat damage before installing new shoes.
• Clean and inspect hardware contact points, adjusters, and wheel cylinders during service.
• Follow the vehicle-specific brake adjustment procedure after installation.
• Confirm rear-only fitment for the exact year, make, and model listed in the application data.

Quality Assurance

PowerStop builds this brake shoe line to strict OEM standards using asbestos-free, copper-free friction material and rust-resistant coated steel. The 451R is engineered for accurate fitment and consistent rear drum brake service across the listed Chevrolet, GMC, and Dodge applications.