The 4" Rough Country kit for the Chevy Silverado TrailBoss 1500 and GMC Sierra AT4 1500 beautifully transforms your truck with the addition of a suspension lift kit. Since these models come with a factory lift, the 4" kit will have them sitting as high as they can go. The Rough Country lift kit was engineered to provide a 4" level stance without sacrificing ride quality by utilizing optimal suspension geometry, giving your truck enhanced off-roading capability while maintaining the smooth handling and ride quality that makes these trucks so impressive.

This 4-inch lift kit allows 35x12.50 tires on 10-inch wide wheels with 4.5-inch backspacing without increasing the stock track width.

Rear N3 Nitrogen charged shocks have 10-stage variable valving to create a fantastic blend of smooth street riding and off-road action. With a durable 18mm spring-loaded piston rod and faster-cooling 54mm shock body, this shock offers up to 36kN Tensile Strength for a long lifespan of impressive vibration dampening. Natural rubber bushings and an eye-catching metallic silver paint combine to make an impressive statement.

Kit Components
Lifted cast knuckles
Front and rear high clearance crossmembers
Upper strut spacers
CV spacers
Differential drop brackets
Differential skid plate
Sway-bar drop brackets
Rear Fabricated lift block kit
Rear Brake line brackets
Rear N3 Nitro shocks

Kit Features
Lifetime Guarantee
Does not increase front track width
Increased ground clearance

View lift kit installation instructions