2011-2019 Duramax Transmission Mount Rear - 70 Hardness (169044170)

Fits

For 2011-2019 four-wheel-drive Allison trucks, PPE offers a rear transmission mount that addresses the same failure points as the front unit: soft factory rubber that degrades under sustained load and high-torque shifts. The Red 70A rear mount is the firmest option, built for sled pull, drag strip, and high-output builds where maximum driveline rigidity is the goal. Dual-silicone bushings with a 30 percent larger contact area handle the torque without the failure modes of the stock rubber insert.

• Red 70A durometer: maximum stiffness for drag and competition use
• Dual-silicone-bushing design reduces shear load
• 30 percent increased steel-to-elastomer contact area
• Reduced vibration and driveline misalignment
• Interchangeable silicone bushings, available in 30A, 50A, and 70A
• 1 Year Limited Warranty

The PPE Performance Transmission Mount is engineered to replace the factory mount's weak rubber compound and high-shear-load design. Featuring dual-silicone bushings with 30 percent more steel-to-elastomer contact area, it distributes load more efficiently and resists failure under sustained towing, heavy loads, or aggressive driving. The premium silicone compound is heat-resistant, weatherproof, and tear-resistant, and the bushings are interchangeable to swap between hardness ratings as your driving application changes.