Fabtech K1230DL 4” Performance System w/ DL 2.5 Resi | 2025 GM Sierra/Silverado 1500

Features:

• 4" lift for front and rear suspension
• Includes Dirt Logic 2.5 front coilovers
• 2.25 Dirt Logic rear shocks included
• IFS design improves on and off-road handling
• Zero bump steer for better driving comfort
• Heavy-duty quarter inch steel crossmembers
• Triple diff mounts reduce highway vibration
• Factory coilovers relocated for full steering range
• Maintains near-stock track width appearance
• Rear lift achieved with block and U-bolt kit
• Made in the USA with premium components
• Backed by 5-year, 60,000-mile powertrain warranty

Turn Your Trail Boss Into The Truck It Was Meant To Be

If you’re ready to make your 2025 Silverado or Sierra 1500 Trail Boss or AT4 perform as tough as it looks, the Fabtech K1230DL 4" Performance System delivers the goods. This system gives you a true 4 inches of lift for added clearance, a stronger stance, and room for larger tires without sacrificing drivability. The included Dirt Logic 2.5 stainless steel coilovers completely change how your truck handles both on and off the road, soaking up bumps while keeping your ride composed and responsive. Whether you're carving through backroads, exploring trails, or just want a confident daily driver, this setup gives your truck the control and comfort to do it all. The ride feels stable and refined, yet firm enough to handle aggressive off-road conditions when you push it hard. Fabtech’s attention to detail means every part fits cleanly, maintaining that factory-like appearance while upgrading performance in every way that counts. It’s the kind of lift that transforms your truck without overcomplicating the setup or changing the way you enjoy the drive.

Precision Tuned Suspension Geometry For True On And Off Road Balance

The Fabtech K1230DL Performance System is built around advanced IFS suspension design, giving your 2025 Trail Boss or AT4 1500 the ideal balance between strength, control, and comfort. This system uses heavy-duty quarter-inch steel crossmembers paired with OE-style alignment cam pins for easy, factory-accurate adjustment. The front end features Dirt Logic 2.5 coilovers with external reservoirs, precision-tuned for the GM 1500 platform to improve damping, reduce fade, and deliver consistent performance in demanding conditions. In the rear, matching 2.25 Dirt Logic shocks are paired with a 5-inch block and U-bolt system for a level, balanced stance. Fabtech’s proprietary steering knuckle geometry ensures tight, predictable turning without losing articulation, while the triple differential mounts keep vibration in check at higher speeds. The near-stock track width keeps the wheels tucked under the fenders for a clean, OEM-style look. Designed for V8 gas models only, this system excludes 4-cylinder engines, Super Cruise, and adaptive ride control, ensuring perfect fitment for performance-minded drivers. Every component is engineered for real-world durability and backed by Fabtech’s 5-year, 60,000-mile powertrain warranty.

Fitment: 2025 GM Sierra/Silverado 1500

Notes:

• Fits 2025 Chevy Silverado and GMC Sierra 1500
• Designed for Trail Boss and AT4 trims only
• Fits crew cab, short bed configurations only
• For V8 gas engine models only
• Does not fit 4-cylinder engine models
• Not compatible with Super Cruise equipped vehicles
• Will not fit models with adaptive ride control
• OEM wheels and tires cannot be reused
• Requires aftermarket wheels with proper offset
• Includes round style U-bolts, verify fitment before ordering
• Factory coilovers are replaced with Dirt Logic 2.5 units
• Professional alignment is strongly recommended after install