Sierra 3500 HD

One area seriously lacking on most GM trucks is the steering link. With an outside diameter of only 1/2in, one wrong turn can easily bend the tie rod leaving your alignment out of whack for all of eternity. That problem is only intensified when you beef...

Get a killer, level look and run up to 295/55R20 tires with Rough Country's 1.5 - 2-inch Leveling Suspension Kit for 11-16 GM HD models. This torsion bar leveling kit features a set of durable, forged torsion keys that level the front of your truck with...

Behold: The pinnacle of off-road performance and smooth ride quality in an affordable package has arrived with Rough Country's 2.5 Vertex 8-Stage Adjustable Reservoir Shocks. These high-performance reservoir shocks offer an elite ride-quality in every...

FeaturesFits up to 33" tiresBolt-on installationAdditional ground clearanceQuickly return to stock4140 forged steelStock ride qualityFeaturesFits up to 33" tiresBolt-on installationAdditional ground clearanceQuickly return to stock4140 forged steelStock...

Right off the lot The GM 2500 HD has an impressive stance and a killer look, inspiring Rough Country to build a kit that would add crucial enhancements while taking nothing away from this sharp looking, new model truck. The 5" V2 Suspension Lift for GM...

Right off the lot The GM 2500 HD has an impressive stance and a killer look, inspiring Rough Country to build a kit that would add crucial enhancements while taking nothing away from this sharp looking, new model truck. The 7.5" M1 Suspension Lift for GM...

Right off the lot The GM 2500 HD has an impressive stance and a killer look, inspiring Rough Country to build a kit that would add crucial enhancements while taking nothing away from this sharp looking, new model truck. The 5" N3 Suspension Lift for GM...

Right off the lot The GM 2500 HD has an impressive stance and a killer look, inspiring Rough Country to build a kit that would add crucial enhancements while taking nothing away from this sharp looking, new model truck. The 5" M1 Suspension Lift for GM...

Superior to stock, everything about Banks Techni-Cooler Intercooler system is bigger. It includes mandrel-bent high-flow boost tubes - large, high-efficiency all-aluminum end tanks - a wide-open inlet and outlet - a thicker core area with an improvement...

Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering impeccable ride quality and performance mile after mile. Rough Country's Monotube V2 Shocks feature an...

The Titanium Signature Series diesel fuel Systems are the superior fuel System and filtration System, in the diesel industry. This is because here at FASS Fuel Systems we focus on perfecting our Systems and how they are engineered, taking the extra steps...

Our FASS Signature Series Adjustable Diesel Fuel Systems are designed to be the most versatile high-performance fuel System on the market that allows for adjustable fuel pressures to meet the demand of high-performance GM Duramax 6.6L applications...