Wilwood 140-18158-D Rear Disc/Drum Brake Kit FDLI Blazer 1971-91 12.19" Rotor 6-Lug SRP

The Wilwood 140-18158-D is a complete FDL Pro-Series rear disc brake conversion kit engineered for the 1971–1991 Chevrolet Blazer and compatible 6-lug rear axle applications. Designed for custom performance street/strip and show vehicles that require a functional parking brake, this kit delivers optimized, balanced stopping power in a clean, professional package.

At the heart of the system are forged billet Dynalite four-piston calipers paired with 12.19" one-piece drum/rotor assemblies. The drum/rotor combination integrates a traditional drum-style parking brake mechanism hidden neatly inside the rotor hat, preserving a clean external appearance while maintaining superior static holding power for parking applications.

Key Features:

• Forged billet Dynalite four-piston calipers for consistent, fade-resistant clamping force
• 12.19" one-piece drum/rotor assemblies for combined service and parking brake function
• High-friction brake pads for optimized performance on street and strip
• Internal shoe parking brake system for clean installation and strong static hold
• 6-lug bolt pattern compatible with factory and custom axle configurations
• SRP (Street/Race/Performance) designation for versatile use across performance builds
• Optional caliper finishes and rotor designs available to personalize style and performance
• Complete kit — all major components included for a straightforward installation

This Wilwood FDLI rear disc kit is the ideal upgrade for builders seeking to replace drum brakes with modern disc brake performance on muscle car and custom truck rear axles, without sacrificing parking brake functionality or visual cleanliness. The FDL Pro-Series platform is trusted across the performance aftermarket for its balance of stopping power, durability, and builder-friendly customization options.