Differential Cover Chrom e GM Truck 12 Bolt Rear

The TRANS-DAPT Differential Cover Chrome GM Truck 12 Bolt Rear is a chrome-plated steel replacement cover engineered for General Motors 12-bolt differential assemblies found in full-size trucks and SUVs. This polished chrome differential cover delivers both aesthetic enhancement and functional protection, safeguarding the differential housing from road debris, moisture, and contaminants while adding a distinctive finish to the undercarriage.

The chrome plating process provides corrosion resistance superior to bare steel, which is critical for vehicles exposed to salt, humidity, or frequent water crossings. The steel construction ensures structural rigidity under load, maintaining a tight seal against the differential housing. At 2.78 lbs, the cover adds negligible weight while its compact design (11.5 × 3.35 × 12.45 inches) ensures precise fitment without modification. The TRANS-DAPT engineering maintains OEM-level compatibility with GM 12-bolt differentials across multiple truck and SUV platforms from the 1970s through contemporary models.

This cover is ideal for owners performing restoration work, upgrading aging or damaged covers, or customizing the appearance of lifted trucks and off-road vehicles. It serves both utility and aesthetics—protecting critical drivetrain components while delivering the polished appearance demanded in show-quality builds. Direct replacement fitment means no drilling, welding, or fabrication required. The chrome finish pairs well with other polished underbody components, making it a popular choice for serious truck enthusiasts and restoration shops.