3 Inch Lift Kit | FOX Coilover Conversion | Chevy Silverado/GMC Sierra 2500HD/3500HD (11-19) Diesel | 4WD

Built for diesel truck owners who need 3 inches of front lift, 35-inch tire clearance, and FOX coilover performance — this comprehensive kit replaces your factory torsion bars with FOX 2.5 Performance Elite or 2.0 Performance Series coilovers, pairs them with heavy-duty tubular upper and lower control arms, and includes rear lift blocks to level your stance. You get corrected suspension geometry, maintained CV angles via differential relocation brackets, and the ability to run up to 35" tires without compromise.

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 or 2.0 Performance Series Coilovers — Your choice of shock tier (see below). Both bolt in and deliver proven damping right out of the box, with the Elite model featuring a remote reservoir for extended heat management and DSC (dual-speed compression) adjustment knobs to tune high-speed and low-speed damping on the fly.
• Heavy-Duty Tubular Upper Control Arms — Built from 1.5" OD × 0.120-wall tubing, fully TIG welded with an indexed ball joint cup to correct geometry, improve strength, and allow additional down travel and camber adjustment.
• Fully Boxed and Gusseted Lower Control Arms — High-strength steel construction with durometer-specific rubber bushings at frame mounts and greaseable ball joints elsewhere for smooth, quiet, long-lasting operation.
• Differential Relocation Brackets — Multipiece design maintains correct CV angles so your driveline geometry stays true and your axles stay happy.
• Sway Bar Links & Hardware — Everything you need to bolt it all together and dial in your new ride.

Out back

Choose between stock-height geometry or a lift block kit (with or without factory overload leaf retention). Either way, you'll pair your rear setup with precision-tuned FOX 2.0 Performance Series or 2.5 Performance Elite shocks and a U-bolt flip kit to level your stance and maximize clearance while preserving load capacity and ride quality.

Pick your shocks

• FOX 2.0 Performance Series — Solid daily-driver and weekend-warrior choice. Bolt-on tuned damping without the frills. Front and rear options available.
• FOX 2.5 Performance Elite — Premium tier. Remote reservoir keeps fluid cool during sustained abuse. DSC dual-speed compression adjustment lets you dial high-speed and low-speed damping independently — dial it for the road in the morning, twist those knobs and go harder off-road in the afternoon. Race-proven technology packed into a platform built to soak up rough terrain.

Important notes

• Maximum tire size is 35 × 12.5 inches.
• Front lift is 3 inches via coilover conversion. Rear lift is either stock geometry, 2 inches (with or without factory overload leaf retention), or up to 3.5 inches depending on block configuration.
• Fits 2011–2019 Chevy Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD (4WD diesel models).
• Kit includes multipiece differential relocation brackets and U-bolt flip kit to maintain driveline angles and maximize rear clearance.

Why customers pick this at Road Runner

• Locally installed and serviced by techs who bolt these kits in every week — you get expert eyes, not a guessing game.
• BDS suspension warranty backed by Road Runner; any issue, you know exactly where to bring it.
• Corrected suspension and steering geometry means your truck handles on-road and off-road without fighting itself.
• FOX shocks deliver adjustability (especially the Elite models) so you tune comfort and damping to your terrain and driving mood.
• 3 inches of front lift plus rear lift blocks = genuine stance improvement and usable tire clearance, not just pretty wheels.

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