Brake System - Classic Series - Rear - 2 Piston Caliper - 13 in Drilled / Slotted Iron Rotor - 1-Piece Rotor - Aluminum - Red Powder Coat - GM A-Body / F-Body / X-Body 1964-74 - Kit

Brake System - SS4 - Rear - 4 Piston Calipers - 12 in Drilled / Slotted Rotors - 1-Piece Rotor - Aluminum - Red Powder Coat - GM A-Body 1964-77 - Kit

Brake System - SS4-Plus - Rear - 4 Piston Calipers - 13 in Drilled / Slotted Rotors - 2-Piece Rotor - Aluminum - Red Powder Coat - GM A-Body 1964-77 - Kit

Brake System - SS4 - Rear - 4 Piston Calipers - 12 in Drilled / Slotted Rotors - 1-Piece Rotor - Aluminum - Red Powder Coat - GM F-Body / X-Body 1967-74 - Kit

Brake System - SS4-Plus - Rear - 4 Piston Calipers - 13 in Drilled / Slotted Rotors - 2-Piece Rotor - Aluminum - Red Powder Coat - GM F-Body / X-Body 1967-74 - Kit

Brake System - SS4 - Rear - 4 Piston Calipers - 12 in Drilled / Slotted Rotors - 1-Piece Rotor - Aluminum - Red Powder Coat - GM G-Body 1978-87 - Kit