6" 1973-1976 GMC Suburban 3/4 Ton 4WD Lift Kit (w/rear lift blocks & add-a-leafs) by Rough Country

The Rough Country 12730 6" Lift Kit is a complete suspension system designed for your 1973–1976 GMC Suburban 3/4 Ton 4WD. Built to provide aggressive styling, increased ground clearance, and improved off-road capability, this kit gives your classic GM truck the lifted stance and performance needed for both trail use and everyday driving.

Up front, the system includes lifted leaf springs that raise the vehicle while improving ride quality and suspension control. A supplied raised steering arm helps correct steering geometry after lifting, while brake line relocation brackets maintain proper brake line routing and travel.

In the rear, the kit uses heavy-duty 4" lift blocks combined with add-a-leaf springs to increase ride height, improve load support, and maintain a balanced stance. Extended U-bolts and hardware are included for a secure installation.

This lift kit comes equipped with (4) Premium N3 Series shock absorbers, offering nitrogen-charged performance, application-specific valving, and a smooth balance of on-road comfort with dependable off-road control.

With the added clearance needed for larger tires and improved obstacle clearance, this system is an excellent upgrade for classic Chevy truck owners wanting capability without sacrificing ride quality.

Backed by Rough Country’s Limited Lifetime Replacement Warranty, this suspension kit is built for long-lasting performance.

Features & Benefits

• Provides 6" of lift for aggressive stance and added clearance
• Lifted front leaf springs improve ride quality and control
• Raised steering arm corrects steering geometry after lifting
• Rear 4" lift blocks and add-a-leafs increase height and load support
• Brake line relocation brackets included
• Premium N3 shocks provide balanced on-road and off-road performance
• Improves ground clearance and off-road capability
• Allows fitment of larger wheel and tire combinations
• Heavy-duty hardware and U-bolts included
• Backed by Rough Country Limited Lifetime Replacement Warranty

What’s Included

• Front Lifted leaf springs
• Steering arm
• Brake line relocation brackets
• FrontU-bolts
• 4" rear lift blocks
• Rear Add-a-leaf springs
• Rear U-bolts
• Hardware
• (4) Premium N3 Series shock absorbers