Wilwood Dynapro Rear Disc Brake Kit for GM 12-Bolt with Parking Brake, Part 140-11398-DR

Upgrade the rear braking performance of your vehicle with the Wilwood Dynapro Rear Disc Brake Kit, part number 140-11398-DR. Designed for GM 12-bolt applications, this complete kit combines a four-piston Dynapro caliper with a drilled and slotted iron rotor to deliver responsive, consistent braking performance for street and performance use. The integrated parking brake capability adds everyday convenience without sacrificing the performance-focused design.
The four-piston aluminum caliper helps provide strong clamping force while reducing unsprung weight compared with conventional cast-iron calipers. A durable red powder-coat finish gives the assembly a clean, distinctive appearance and helps protect the caliper surface from normal automotive exposure. The drilled and slotted rotor supports heat management and helps maintain reliable braking performance during repeated stops.
Wilwood engineered the 140-11398-DR kit as a direct rear brake upgrade for compatible GM 12-bolt axle configurations. Its application-specific components simplify installation when paired with the correct vehicle setup, while the included caliper and rotor combination provides a balanced foundation for improved braking control. Verify axle, wheel, suspension, and clearance requirements before installation to ensure compatibility.
This Wilwood rear disc brake kit is intended for enthusiasts, restorers, and performance drivers seeking a modern braking solution for a GM 12-bolt rear end. The kit includes the Dynapro four-piston rear caliper, drilled and slotted iron rotor, and parking brake functionality in a cohesive package from Wilwood.

Features:

• Brand: Wilwood

• Part Number: 140-11398-DR

• Application: GM 12-bolt rear axle

• Brake Position: Rear

• Caliper Type: Dynapro four-piston aluminum caliper

• Rotor Type: Drilled and slotted iron rotor

• Rotor Size: 11 inches

• Finish: Red powder coat

• Parking Brake: Included

• Kit Type: Complete rear disc brake kit