The stock transmission is designed to handle the output of the stock engine, but not much more. Increase the durability of your drivetrain with a BD transmission.

All transmissions come with BD's heavy duty transmission pan.

Details:

• Series: TowMaster
• Drive: 2WD
• Ems Code: 4
• Engine Designation: LLY
• Engine Years: 2004.5-2006
• Installation Time: 9 Hours
• Transmission Model: Allison
• Fits: 2004-2005 Silverado/Sierra 2500 HD/3500
• Shipping Restriction: This product does not require an EO in California. By nature of its design, it is legal for sale and use in all 50 states
• Sold As: Each
• Warranty: 36-Months/150,000 Miles