ZF6 Transmission Rear Housing Support

Merchant 10369 ZF6 Transmission Rear Housing Support | 01-06 GM 6.6L Duramax 2500HD/3500HD

Reinforce Your ZF6 Transmission
The Merchant Automotive 10369 Rear Housing Support is engineered to eliminate a known weak point in 2001–2006 GM 2500HD/3500HD trucks equipped with the 6.6L Duramax and ZF6 manual transmission. This precision-machined support bracket reinforces the transmission tail housing, preventing flex and cracking under load—especially in high-torque or heavy-towing applications.

Durability for Performance and Towing
ZF6 transmissions are built tough, but the rear housing is a known stress point when under extreme load or high horsepower. This rear support bracket ties the transmission to the transfer case, dramatically reducing movement and distributing stress evenly. Whether you’re sled pulling, towing heavy, or running aggressive tuning, this upgrade helps ensure your driveline holds up.

Direct Bolt-On Installation
The 10369 bracket is a true bolt-on part, requiring no modifications or special tools for installation. It comes powder-coated for corrosion resistance and includes Grade 8 hardware for a secure and lasting fit.

• Reduces transmission tail housing flex and fatigue

• Prevents cracking in high torque, towing, or off-road use

• CNC-machined steel with black powder coat finish

• Works with factory and aftermarket driveline setups

• Includes heavy-duty mounting hardware

Fitment: 2001, 2002, 2003, 2004, 2005, 2006 GM 2500HD/3500HD 6.6L Duramax with ZF6 Transmission
Warranty: Limited Lifetime Warranty
Fitment Notes: Only compatible with trucks equipped with the ZF6 6-speed manual transmission. Not for Allison-equipped models.