6 Inch Lift Kit - 56 Inch Rear Springs - Chevy/GMC C10/K10 Truck & SUV/K5 Blazer (77-87)
Transform Your Truck's Stance and Capability: Upgrade your GM truck from front to back with Rough Country's 6" 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, add-a-leaf's, and brake line brackets maintain proper geometry, ensuring a smooth, factory-like ride after installation. For a complete suspension upgrade, the kit is also available with replacement rear lifted leaf springs, offering consistent rear lift and eliminating the need for lift blocks. 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 6" lift offers enough clearance to run up to a 37" 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.
  • 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.
  • Optional Rear Leaf Springs: Available with replacement rear springs for a complete suspension upgrade.
  • Clears 37-Inch Tires: Provides ample room to run up to a 37" 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.

Information:

ONLY fits models with 56" rear leaf springs. If vehicle is equipped with a front sway-bar, drop brackets are recommended SKU: 1019. Optional Rear Springs: To confirm rear spring size a measurement will have to be pulled from eyelet to eyelet. For a visual, please click here. Vehicles with factory quad shocks (2 front shocks per side) will simply use a single aftermarket shock.

Application Summary:

Year Make/Model
1987 Chevrolet Blazer
1977-1986 Chevrolet K10
1977-1986 Chevrolet K10 Suburban
1977-1986 Chevrolet K5 Blazer
1987 Chevrolet V10
1987 Chevrolet V10 Suburban
1977-1987 GMC Jimmy
1977-1978 GMC K15
1977-1978 GMC K15 Suburban
1979-1986 GMC K1500
1979-1986 GMC K1500 Suburban
1983-1987 GMC S15 Jimmy
1987 GMC V1500
1987 GMC V1500 Suburban
Attributes
California Proposition 65 WARNING: Cancer - www.P65Warnings.ca.gov
Category Susp Lift Kits 4wd, Susp Lift Kits 4wd
Country of Origin (Primary) ID
Front Components Lifted leaf springs, Steering Arm, Brake line relocation brackets, U-bolts, Hardware
Front Kit Componenets Lifted leaf springs, Steering Arm, Brake line relocation brackets, U-bolts, Hardware
Front Kit Components Lifted leaf springs, Steering Arm, Brake line relocation brackets, U-bolts, Hardware
GTIN 00843030145781
Harmonized Tariff Code (Schedule B) 8708801600
Hazardous Material Code N
Install Time 6 - 8 hours
Life Cycle Status Code Available to Order
Lift/Drop Height 6 in.
NAFTA Preference Criterion Code D
Rear Components Lifted leaf springs, 2 in lift blocks, U-bolts, Hardware
Rear Kit Components Lifted leaf springs, 2in Lift Blocks, U-Bolts, Hardware
SDR Required Flag N
Shipping Group No Restrictions
Shipping Options No Restrictions
Ships in Multiple Boxes Y, Y
Tire & Wheel Size Combinations 37x13.50 R15 - 15x8, Backspacing: 4.5in, 37x13.50 R15 - 15x8, Backspacing: 4.5in
Tire, Wheel, and Offset Info 37x13.50R15:15x8:6x5.5:+0:-; 37x12.50R15:15x10:6x5.5:-24:-; 37x12.50R15:15x10:6x5.5:-19:-; 37x12.50R15:15x10:6x5.5:-18:-; 37x13.50R16:16x8:6x5.5:+0:-; 37x12.50R16:16x10:6x5.5:-24:-; 37x12.50R16:16x10:6x5.5:-19:-; 37x12.50R16:16x10:6x5.5:-18:-; 37x12.50R17:17x9:6x5.5:-12:-; 37x12.50R17:17x9:6x5.5:+0:-; 37x12.50R17:17x9:6x5.5:+1:-; 37x12.50R18:18x9:6x5.5:-12:-; 37x12.50R18:18x9:6x5.5:+0:-; 37x12.50R18:18x9:6x5.5:+1:-; 37x12.50R20:20x9:6x5.5:-12:-; 37x12.50R20:20x9:6x5.5:+0:-; 37x12.50R20:20x9:6x5.5:+1:-; 37x12.50R20:20x10:6x5.5:-25:-; 37x12.50R20:20x10:6x5.5:-24:-; 37x12.50R20:20x10:6x5.5:-19:-; 37x12.50R20:20x10:6x5.5:-18:-; 37x12.50R20:20x12:6x5.5:-44:-
Utv Product N

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Rough Country 21430 6 Inch Lift Kit

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