Fabtech K1231M 4” Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500

Features:

• 4" front and rear lift system
• Includes Fabtech Stealth rear shocks
• IFS design improves on and off-road control
• Zero bump steer through full suspension cycle
• Heavy-duty quarter inch steel crossmembers
• Triple diff mounts reduce highway vibration
• Maintains near-stock track width appearance
• Proprietary knuckles allow tight turning radius
• Relocates factory coilovers for steering clearance
• Rear lift achieved with block and U-bolt kit
• All hardware included for clean installation
• Made in the USA and warranty backed

Take Your Truck To The Next Level Without Overcomplicating The Ride

If you're ready to give your 2025 Silverado or Sierra 1500 a tougher stance without compromising ride quality, the Fabtech K1231M 4" Sport System with Stealth Shocks is a smart move. This kit delivers the extra clearance you need for larger tires and better off-road capability, all while keeping your truck feeling smooth and predictable on the pavement. It’s the kind of upgrade that instantly changes the look and feel of your truck, without going overboard or making things overly complicated. The included Stealth monotube rear shocks help balance control and comfort whether you're cruising through town or venturing into rougher terrain. Fabtech’s design keeps your tires tucked within the fenders for a clean, factory-like appearance, which is great for staying street legal and avoiding unnecessary hassle. Best of all, the kit is fully bolt-on, so you won’t need to cut or modify anything to make it work. With a solid blend of performance, durability, and daily usability, this system brings real value to your build.

Built For Stability Steering Precision And Long Term Durability

The Fabtech K1231M 4" Sport System is built around the company’s proven IFS suspension design, delivering dependable performance for the 2025 Chevy Silverado and GMC Sierra 1500. This system uses quarter inch thick steel crossmembers with OE-style cam pins for easy alignment, giving you solid support and factory adjustability after the lift. Fabtech’s proprietary steering knuckles are designed to maintain proper turning radius, allowing for tight maneuvering even with the added ride height. To keep drivability consistent at speed, a triple differential mount setup repositions the front diff, reducing vibration and helping maintain long-term reliability. The factory coilovers are relocated to allow full steering clearance while achieving a true 4 inches of front lift. In the rear, the lift is handled by a block and U-bolt setup and is paired with Fabtech’s Stealth monotube shocks for consistent damping and smooth suspension travel. This system keeps the track width close to stock, which not only looks clean but also avoids fender clearance issues and unnecessary tire poke. It's designed to fit crew cab short bed V8 gas models only and is not compatible with Super Cruise, adaptive ride control, or 4-cylinder configurations.

Fitment: 2025 GM Sierra/Silverado 1500

Notes:

• Fits 2025 Chevy Silverado and GMC Sierra 1500
• Compatible with crew cab, short bed models only
• Designed for V8 gas engine models only
• Not compatible with 4-cylinder engine configurations
• Will not fit models equipped with Super Cruise
• Does not fit trucks with adaptive ride control
• OEM wheels and tires cannot be reused
• Requires aftermarket wheels with correct offset
• Uses round style U-bolts, verify fitment before purchase
• Relocates factory coilovers for proper steering clearance
• Triple differential mounts reduce highway vibration
• Prop 65 warning label
• Professional alignment recommended after installation