1977-1987 K20 / Suburban 6" Lift Kit (BDS130H)Take your 1977 1987 Chevy and GMC 3 4 ton truck or SUV to the next level with this 6 inch lift kit from BDS Suspension. Designed to improve stance, performance, and capability of the K20 and K25, this kit includes everything necessary to set your truck up right with clearance for up to 36 inch Tires. Features Front Lift Method: Leaf Spring Rear Lift Method: Blocks Shocks Included: Yes Front Lift Height: 6 inch Rear Lift Height: 4. 5 inch The 3 4 ton