4 Inch Lift Kit | RR Blocks | Chevy/GMC C10/K10 Truck & SUV/K5 Blazer (73-76)

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. 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.
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.

Notes

If vehicle is equipped with a front sway-bar, drop brackets are recommended SKU: 1019. Vehicles with factory quad shocks (2 front shocks per side) will simply use a single aftermarket shock.

Instructions

View Instructions

The Kaos Run Down

Fitment Year: 1973 1974 1975 1976

Make: GMC

Model: K15

Submodel: Base

Drive: 4WD

Install Time: 6-8 hours

Front Components: Lifted Leaf Springs Steering Arm Brake Line Relocation Brackets U-Bolts Hardware

Rear Components: 4" Lift Blocks U-Bolts Hardware