6" RTS System w/ Performance Shocks

Features:

• 6-inch lift for enhanced off-road clearance
• RTS system keeps torsion bars stock mounted
• Improves ground clearance with no bar drop
• Includes Fabtech performance twin tube shocks
• 9-stage valving for smooth ride control
• Closed cell insert reduces shock fade
• Heavy-duty 1/4-inch high-arched crossmembers
• Ductile iron knuckles maintain proper geometry
• Front skid plate protects differential components
• Rear lift achieved with blocks and u-bolts
• Supports up to 37-inch tires with trimming
• Requires 18-inch or larger aftermarket wheels

Take Your Truck From Mild To Full-On Trail Ready

If you're ready to give your Silverado or Sierra 2500HD a true transformation, the Fabtech K1046 6-inch RTS System with Performance Shocks brings a clean, capable lift that doesn’t mess around. This kit instantly changes the look and feel of your truck, offering a bold stance that clears up to 37-inch tires while still riding smooth enough for daily use. It’s built for guys who want their truck to handle trails, job sites, or just look dialed in without sacrificing drivability. Fabtech’s patented RTS design keeps the torsion bars mounted in their factory position, which means more ground clearance and fewer components hanging low to get banged up off-road. With Fabtech Performance Shocks included, the ride stays responsive and balanced whether you're hauling a trailer or cruising down the highway. The shocks are specifically tuned for this suspension setup, so you won’t get the bounce or stiffness common in generic kits. It’s a smart, aggressive upgrade that works just as hard as your truck does.

Tuned Suspension Geometry And Proven Ride Control Built In

The Fabtech K1046 6-inch RTS Lift System is a purpose-built solution for 2011-2019 GM Silverado and Sierra 2500HD trucks, designed to maintain proper suspension geometry while adding serious lift. At the core of this system is the RTS bracket design, which keeps torsion bars mounted in the stock location to preserve frame clearance and protect against off-road damage. The high-arched 1/4-inch thick crossmembers and ductile iron steering knuckles ensure structural strength and correct alignment throughout the suspension travel. This system includes Fabtech's twin tube Performance Shocks featuring 9-stage valving and a closed-cell foam insert that reduces fade at higher speeds. These shocks are tuned specifically for lifted applications, helping control larger tires while delivering a composed on-road feel. A front differential skid plate is included to protect drivetrain components during trail use. Rear lift comes from cast blocks and U-bolts, keeping the factory leaf springs in place for reliable load handling. With clearance for 35 to 37-inch tires and bolt-on installation, this kit blends form and function in one smart package.

Fitment: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 GM Silverado/Sierra 2500HD

Notes:

• Fits 2011-2019 Chevy Silverado and GMC Sierra 2500HD
• Compatible with both 2WD and 4WD models
• Designed for extended cab and crew cab configurations only
• Not compatible with GMC AT4 or Chevy Trail Boss models
• RTS system keeps torsion bars in factory location
• Improves ground clearance with no low-hanging components
• Includes Fabtech performance twin tube shocks
• Shocks are tuned with 9-stage valving for lifted trucks
• Supports up to 37-inch tires with minor trimming
• Requires aftermarket wheels 18 inches or larger
• Front differential skid plate included for driveline protection
• California Prop 65 warning applies to this product