Dorman 947-235 Brake Backing Plate - Rear

Brake Dust Shield for Ram Rear Disc Brakes

Dorman 947-235 is a rust-resistant brake backing plate built to protect the rear braking system from road debris and harsh weather exposure. It is a direct replacement for select Ram 1500 and Ram 1500 Classic applications, with dimensional verification and salt spray testing used to support proper fit and longer service life.

Compatible with 2013-2018 Ram 1500 rear brake applications and 2019-2021 Ram 1500 Classic rear brake applications, this Dorman brake dust shield helps restore the protective barrier around the disc brake assembly. The black steel construction is sized for the specified brake opening and mounting pattern, making it a practical OE-style replacement for rear brake service.

Key Features

• Brand: Dorman
• Part Number: 947-235
• Brake backing plate / brake dust shield for rear disc brakes
• Steel construction with black finish
• Rust-resistant design for exposure to moisture and road salt
• Dimensional verification for fit accuracy
• Salt spray tested for corrosion resistance
• 5 mounting holes
• Inside diameter: 76 mm
• Outside diameter: 224 mm
• Thickness: 0.8

Detailed Description

This Dorman 947-235 brake backing plate is engineered as a replacement dust shield for rear disc brake systems on Ram trucks. It helps shield the brake components from debris, water, and corrosive conditions that can accelerate wear or create noise and contamination around the rotor area. The steel construction and rust-resistant finish support dependable service in demanding driving environments.

For Ram 1500 and Ram 1500 Classic rear brake repairs, this part number 947-235 provides a direct-fit replacement approach based on verified dimensions and application-specific design. This part cross-references Chrysler OE numbers 4779823AB and 4779823AC for the same application.

What It Helps Address

• Corrosion on the original rear brake dust shield
• Damage from road debris striking the brake area
• Brake noise caused by a bent or deteriorated backing plate
• Reduced protection around the rear disc brake assembly
• Fitment issues after brake service or suspension work

Installation Notes and Tips

Verify rear brake application before installation. This part is listed for 2013-2018 Ram 1500 rear and 2019-2021 Ram 1500 Classic rear configurations. Confirm the brake type is disc and match the mounting hole pattern, diameter, and inside opening to the original component before assembly.

Inspect the rotor, hub area, and surrounding hardware during replacement. Clean corrosion from the mounting surface so the new backing plate seats correctly. Because mounting hardware is not included, reuse or source the required fasteners separately as needed for the repair.

Quality Assurance

Dorman uses dimensional verification and salt spray testing on this replacement brake dust shield to support fit accuracy and corrosion resistance. The result is a service part built for the rear brake environment on Ram 1500 and Ram 1500 Classic applications.