4 Inch Lift Kit | Rear Springs | Chevy & GMC C10/K10 Truck & SUV / K5 Blazer (1977-1991)

Transform Your Truck's Stance and Capability: Upgrade your GM truck from front to back with Rough Country's 4" Suspension Lift Kit. This premium lift delivers a leveled, aggressive look while enhancing ride height and off-road readiness all with an easy bolt-on installation.Engineered for Superior Ride Quality: This kit includes application-specific front lifted leaf springs, delivering increased ground clearance without sacrificing ride comfort or control. Rear lift blocks and brake line brackets maintain proper geometry, ensuring a smooth, factory-like ride after installation. For a complete suspension upgrade, the kit is also available with replacement rear lifted leaf springs, offering consistent rear lift and eliminating the need for lift blocks.Enhanced Performance with N3 Series Shocks: Rough Country's N3 series shocks come standard valved for your exact application and designed to provide a perfect balance of on-road smoothness and off-road capability. Featuring a 10-stage variable valving system, high-pressure nitrogen charge, and durable 54mm shock body with 18mm piston rod, these shocks are built for performance and longevity.Room for Bigger Tires: Make room for aggressive wheel and tire combos. This 4" lift offers enough clearance to run up to a 35" tall tire with proper backspacing, giving your truck the rugged stance it deserves.Improved Steering and Handling: To maintain proper drivability, a raised steering arm is included correcting steering geometry for tight, responsive handling after the lift.Limited Lifetime Warranty: Rough Country backs this kit with a Limited Lifetime Warranty, giving you long-term confidence on and off the road.

Features

• Boosted Ground Clearance: Gain the extra height needed for better off-road capability and obstacle clearance.\ Application-Specific Front Leaf Springs: Engineered for a perfect fit and optimal ride quality.\ Optional Rear Leaf Springs: Available with replacement rear springs for a complete suspension upgrade.\ Clears 35-Inch Tires: Provides ample room to run up to a 35" tall tire with no rubbing.\ Raised Steering Arm Included: Corrects steering geometry for precise handling and improved alignment.\ Premium N3 Series Shocks: Includes application-valved N3 shock absorbers for balanced on-road comfort and off-road control.

Note: ONLY fits models with 56" rear leaf springs. If vehicle is equipped with a front sway-bar, drop brackets are recommended SKU: 1019. Optional Rear Springs: To confirm rear spring size a measurement will have to be pulled from eyelet to eyelet. For a visual, please click here. Vehicles with factory quad shocks (2 front shocks per side) will simply use a single aftermarket shock.

Installation Instructions (PDF)