Rough Country - 245.20 - 4-inch Lift System Features: Increased ground clearance; Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use. Notes: ONLY fits models with 52" rear leaf springs.; If vehicle is equipped with a front sway-bar, drop brackets are recommended. (SKU: 1019); If vehicle is equipped with factory front quad shocks (4 total front shocks), please add Factory Quad Shock kit below (SKU: Q20027). Fits: 1977-1987 4WD Chevrolet 1/2-Ton Pickup; 1977-1991 4WD Chevrolet Blazer; 1977-1991 4WD Chevrolet 1/2-Ton Suburban; 1977-1987 4WD GMC 1/2-Ton Pickup; 1977-1991 4WD GMC Jimmy; 1977-1991 4WD GMC 1/2-Ton Suburban KIT CONTENTS: Lifted leaf springs; Steering arm; Brake line relocation brackets; U-bolts; HardwareLifted leaf springs; U-bolts; Hardware(4) Premium N3 series Specs: Est. Install Time: 6 - 8 hours; SKU: 245.20