Dynamite Friction 7004-31020 Disc Brake Kit - Front and Rear

Brake Kit for BMW 320i

Dynamite Friction DFC Rotors-Drilled and Slotted-Silver with DFC Drums, part number 7004-31020, is a front and rear disc brake kit for 1977-1983 BMW 320i models with rear drums and shoe kit. It combines drilled and slotted rotor surfaces with matched drum components to support consistent braking performance in everyday driving and wet conditions.

Key Features

• Fits 1977-1983 BMW 320i, front and rear
• Drilled and slotted rotor design for added pad bite
• Slots help clear brake dust and road debris
• Drilled holes help reduce heat buildup on the rotor surface
• GEOSPEC coated rotor construction for corrosion resistance
• Machined to tight tolerances with a non-directional finish for smoother pad bed-in
• 100% inspected for balance and critical dimensions
• Part number 7004-31020

Product Details

The DFC Rotors-Drilled and Slotted-Silver with DFC Drums line focuses on OE-style fitment with performance-oriented rotor geometry. For BMW 320i brake service, this kit pairs drilled and slotted rotors with DFC drum components to help maintain stable braking feel, reduce glazing, and support even pad contact. The rotor casting uses G3000/G11H18 cast iron specifications and is finished to OE-level dimensional targets for durability and reliability. This part number, 7004-31020, is built for drivers servicing a BMW 320i brake system that uses rear drums and shoe kit components.

Common Issues This Kit Addresses

• Longer stopping distances in wet weather
• Brake fade from heat buildup
• Brake pad glazing
• Rotor vibration caused by uneven finish or balance
• Brake noise from inconsistent pad bedding

Installation Notes

Verify that your BMW 320i is equipped with rear drums and shoe kit before ordering. Match the rotor and drum orientation to the vehicle position during installation, and follow proper brake bedding procedures after service. Inspect related brake components for wear before completing the job.

Quality Assurance

Each rotor is machined, non-directionally finished, electronically mill-balanced when needed, and then inspected for critical dimensions to meet OE specifications. DFC backs this brake kit with a 12 month or 12,000 mile limited warranty against defects in material and workmanship. Part number 7004-31020 is engineered for 1977-1983 BMW 320i brake service.