6-Inch Lift Kit with N3 Shocks for Chevy & GMC 4WD (1977–1991)

About this kit

6-Inch Lift Kit with N3 Shocks, fitment-checked

Rough Country 251.20 is a 6-inch lift kit for 1977–1991 Chevy K30/K3500 and GMC K35/K3500 4WD trucks listed in the fitment section. It combines lifted front leaf springs, a Dana 60 steering block, and brake line relocation brackets up front with add-a-leaf springs and 4-inch lift blocks in back, plus application-valved N3 series shocks.

This 6-inch lift kit covers the 1977–1991 Chevy K30/K3500 and GMC K35/K3500 4WD applications shown in the fitment table, spanning Custom Deluxe, Scottsdale, Silverado, Cheyenne, and Sierra Classic trims. Front hardware includes lifted leaf springs, a Dana 60 steering block, brake line relocation brackets, and U-bolts; the rear uses add-a-leaf springs with 4-inch lift blocks and its own U-bolt set. Extended brake lines are advisable, and trucks running a front sway bar should also plan on drop brackets. Rough Country lists the job at 6 - 8 hours, and a downloadable installation guide is available before you start.