4” Sport System w/ Performance Shocks

Features:

• 4" lift for front and rear suspension
• Includes Fabtech performance rear shocks
• Heavy-duty crossmembers with OE cam mounts
• Maintains near-stock track width for clean look
• Zero bump steer for smoother on-road driving
• Engineered for excellent off-road handling
• Steering geometry allows tight turning radius
• Triple diff mounts reduce high-speed vibration
• 5" rear block and U-bolt lift system included
• Compatible with crew cab, short bed models
• Made in the USA with premium materials
• Backed by 5-year, 60,000-mile warranty

Make Your Sierra Or Silverado Stand Taller And Ride Better

If you're looking to lift your 2025 Silverado or Sierra 1500 without compromising drivability, the Fabtech K1231 4" Sport System with Performance Shocks is a solid way to get there. This setup gives your truck the clearance and attitude you're after while keeping it fully capable both on and off the road. With 4 inches of lift, you’ll have room for larger tires and better ground clearance to handle uneven terrain, job sites, or just everyday curb-hopping in town. The system is built for real use, not just looks, with a clean, factory-like stance that keeps your tires tucked under the fenders. Even better, it rides surprisingly smooth thanks to Fabtech’s specially tuned performance shocks that balance firmness and comfort. Whether you're hauling gear, exploring backroads, or just want that confident lifted look, this kit makes your truck feel like it’s ready for more. It’s also fully reversible, which adds peace of mind if you ever want to return to stock.

Engineered Suspension Geometry Meets Confident On And Off Road Control

The Fabtech K1231 4" Sport System is designed for 2025 GM Sierra and Silverado 1500 crew cab short bed models with gas engines, and it’s packed with serious engineering to support long-term durability and smooth handling. This system uses heavy-duty quarter-inch thick steel crossmembers with OE-style alignment cam pins, allowing precise factory-style adjustment. Fabtech’s proprietary steering knuckles are built to maintain tight lock-to-lock turning, and the zero bump steer design helps reduce fatigue over long drives or rough surfaces. The front factory coilovers are repositioned to allow full steering range while achieving lift, and a triple diff mount setup realigns the front differential for smooth, vibration-free highway driving. In the rear, a 5-inch block and U-bolt system levels the stance, paired with Fabtech performance shocks to improve damping and ride quality. The kit keeps the track width nearly stock, helping maintain a clean, tucked-in wheel appearance. It does not fit Super Cruise, adaptive ride control, standard cab, or 4-cylinder models, and requires aftermarket wheels due to clearance restrictions with OEM setups.

Fitment: 2025 GM Sierra/Silverado 1500

Notes:

• Fits 2025 GMC Sierra and Chevy Silverado 1500
• Designed for crew cab, short bed configurations only
• Fits V8 gas models only, excludes 4-cylinder engines
• Not compatible with Super Cruise equipped vehicles
• Will not fit models with adaptive ride control
• Does not fit standard cab models
• OEM wheels and tires cannot be reused
• Requires aftermarket wheels with proper offset
• Kits include round style U-bolts, verify fitment
• Factory coilovers are relocated for full steering clearance
• Prop 65 warning label
• Triple front diff mounts reduce vibration at highway speeds
• Professional alignment is recommended after installation