2.5 Inch Lift Kit | FOX 2.5 Performance Elite Coil-Over | Chevy Trail Boss or GMC AT4 1500 (25-26) 4WD | Gas

Built for Trail Boss and AT4 owners who want aggressive stance without sacrificing on-road manners — this 2.5-inch lift kit pairs BDS's proven suspension geometry with FOX Performance Elite coil-over shocks to deliver 2.5 inches up front and 1 inch in the rear, unlocking room for 33-inch tires and confident handling both on pavement and in the rough.

Installed and serviced at Road Runner Wheels & Tires. Most kits go in the same day. Call (678) 400-6467 to schedule.

What you get up front

• FOX 2.5 Performance Elite Coil-Over Shocks — Remote-reservoir design with DSC adjusters (10 low-speed, 12 high-speed compression settings) and race-proven damping tuned right out of the box for comfort and control on any surface.
• CNC-Machined Steering Knuckles — Corrected geometry at the new height; ESC-compatible and paired with replacement tie rod ends for true bolt-in installation.
• HD Upper Control Arms — 1.5" OD tubular construction with indexed ball joints for added camber adjustment and down-travel, plus greaseable joints for long-term durability.
• High-Clearance 1/4-Inch Steel Crossmembers — Laser-cut precision fit with integrated skid plate system for rigidity and off-road protection without sacrificing ground clearance.
• Sway Bar Drops, Bump Stop Extensions & Brake Line Brackets — All hardware included for a complete, comprehensive front end ready to install.

Out back

Heavy-duty lift block (in place of OEM) retains ride quality and load capacity. Paired with new u-bolts, brake line brackets, and premium FOX 2.0 Performance Series shocks tuned for smooth articulation and load handling.

Pick your shocks

• FOX 2.0 Performance Series — Smooth, tuned ride quality on and off road; proven damping in a reliable, field-tested package.
• FOX 2.5 Performance Elite — Remote reservoir, DSC adjusters, race-proven technology, and next-level on-road comfort plus off-road capability when you need it.

Important notes

• Maximum tire size is 33 x 12.5 inches.
• Fits 2025–2026 Chevy Silverado 1500 Trail Boss and GMC Sierra 1500 AT4 4WD (gas engines).
• Corrected caster and steering geometry are built into the kit; knuckle and tie rod end design ensures ESC system compatibility.
• No factory air suspension or RamBox compatibility.

Why customers pick this at Road Runner

• Geometry correction engineered into every component — no guesswork, no surprises on the road.
• FOX shocks backed by BDS warranty and installed by technicians who do these kits weekly.
• Professional install in our shop keeps downtime to a minimum.
• Complete bolt-on package — brackets, extensions, hardware all included; nothing left to source.
• Local support and expertise you can call or visit anytime.

Ready to build it? Call (678) 400-6467. Hablamos Español.