Turnoverball Mounting Kit

Features:

• Compatible with 2011–2015 GM 2500HD/3500HD
• Designed for 6.6L Duramax diesel models
• Massive 30,000 lb towing capacity
• Installs without bed removal or welding
• Mounts to existing frame holes
• Leaves truck bed level when not towing
• Only a 4-inch bed hole required
• Includes front and rear cross members
• Driver and passenger side plates included
• Ideal for gooseneck towing setups
• Durable, vehicle-specific fit and design
• Made in the USA by B&W Trailer Hitches

Built For Big Jobs Without Losing Bed Space

If you're hauling serious weight and need your truck bed to stay functional when you're not towing, the B&W GNRM1012 Turnoverball Mounting Kit is the way to go. This setup gives you a full-strength gooseneck hitch when you need it and a clean, level bed when you don’t. No welding, no bed removal, and no sketchy modifications. Everything bolts right into existing holes on your 2011-2015 Silverado or Sierra 2500HD/3500HD with the 6.6L Duramax engine. Whether you're pulling a livestock trailer, flatbed, or RV, the 30,000 lb capacity has you covered with confidence. Once the ball is flipped over and stored, your bed is completely usable again without anything in the way. It's the perfect blend of heavy-duty capability and everyday practicality, especially for anyone who needs their truck to work hard during the week and stay versatile on the weekend.

Engineered To Fit Right And Tow Strong

The B&W GNRM1012 is precision-built for the 2011-2015 GM Silverado and Sierra 2500HD and 3500HD trucks equipped with the 6.6L Duramax diesel. This mounting kit is part of B&W’s Turnoverball system, allowing for quick ball access through a simple 4-inch bed hole and total removal when not in use. It installs beneath the bed, using factory frame holes, which eliminates the need for welding or cutting into critical areas of your truck. The kit includes both driver and passenger side plates, along with front and rear cross members, creating a solid mounting structure designed to handle up to 30,000 lbs of towing weight. This setup is ideal for gooseneck trailers and heavy-duty hauling, while still allowing the bed to function like normal when the hitch isn’t in use. The design ensures tight, secure mounting that won’t flex or rattle under load. Built in the USA, this kit is trusted by professionals who demand long-term durability and performance.

Fitment: 2011, 2012, 2013, 2014, 2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Mounting kit only, hitch ball and center section sold separately
• Fits 2011-2015 GM Silverado and Sierra 2500HD/3500HD with 6.6L Duramax
• Designed exclusively for trucks with factory-installed beds
• Not compatible with trucks that have aftermarket bed liners or modifications
• Requires a 4-inch hole to be drilled in the truck bed
• Installs using existing frame holes, no welding or frame drilling required
• All required mounting hardware is included in the kit
• Vehicle must have adequate ground clearance for under-bed installation
• Professional installation is recommended for best results
• Backed by B&W’s limited lifetime warranty
• Made in the USA using high-strength steel components
• Includes driver and passenger side plates plus front and rear cross members