Rough Country · Authorized Dealer
4 Inch Lift Kit | Rear Springs | Chevy/gmc C10/k10 Truck & Suv/k5 Blazer (77-91)
$899.95
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🛠️ Install available in Marietta, GA
Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.
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Built for classic Chevy and GMC 4WD owners who want a leveled, aggressive stance with real off-road capability, this 4-inch lift kit combines front leaf springs, rear springs, and application-valved N3 shocks for a complete suspension upgrade. Gain the height you need for obstacle clearance and up to 35-inch tires while maintaining proper steering geometry and ride quality.
Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.
What's included
- N3 Kit Box — Complete suspension package engineered for your specific year and model.
- Front Leaf Springs (qty 2) — Application-specific springs deliver 4 inches of lift with optimized ride quality and control.
- Rear Leaf Springs (qty 2) — Optional replacement springs provide consistent rear lift and eliminate the need for lift blocks.
- N3 Series Shocks — Application-valved 54mm shock bodies with 18mm piston rods, high-pressure nitrogen charge, and 10-stage variable valving for on-road comfort and off-road performance.
- Raised Steering Arm — Corrects steering geometry for tight, responsive handling after the lift is installed.
Important notes
- This kit only fits vehicles with 56-inch rear leaf springs. Confirm your vehicle's spring size before ordering.
- If your truck is equipped with a factory front sway bar, drop brackets (SKU: 1019) are recommended to maintain proper suspension geometry.
- Vehicles with factory quad shocks (two front shocks per side) will use a single aftermarket shock as part of this kit.
- Maximum tire clearance is 35 inches with proper backspacing — larger tires may cause rubbing or clearance issues.
Why customers pick this at Road Runner
- Rough Country Limited Lifetime Warranty backed by our local team — we stand behind every install.
- Professional installation by technicians who perform classic truck lifts every week, ensuring correct geometry correction.
- Alignment performed in-house as part of every lift install — no separate shop visit needed.
- Complete front-to-back suspension upgrade in one kit — no mixing and matching components.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 2 | 4in Rear Leaf Spring | Chevy/GMC C10/K10 Truck & SUV/K5 Blazer 4WD (77-91) | 8026 |
| 2 | 4in Spring | Chevy/GMC C10/K10 Truck (73-87)/Half-Ton Suburban (73-91) | 8002R |
| 1 | N3 Kit Box | GMC C15/K15 Pickup (77-87) GMC Half-Ton Suburban (77-91) | 124530 |
Features
- 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 35-Inch Tires: Provides ample room to run up to a 35" 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.
| Years | Make | Model | Drive |
|---|---|---|---|
| 1987 | Chevrolet | Blazer Custom Deluxe | 4WD |
| 1987-1991 | Chevrolet | Blazer Silverado | 4WD |
| 1988-1991 | Chevrolet | Blazer Scottsdale | 4WD |
| 1977-1980 | Chevrolet | K10 Custom Deluxe | 4WD |
| 1977-1981 | Chevrolet | K10 Cheyenne | 4WD |
| 1977-1986 | Chevrolet | K10 Scottsdale | 4WD |
| 1977-1986 | Chevrolet | K10 Silverado | 4WD |
| 1981 | Chevrolet | K10 Deluxe | 4WD |
| 1981-1986 | Chevrolet | K10 Custom | 4WD |
| 1977-1980 | Chevrolet | K10 Suburban Custom Deluxe | 4WD |
| 1977-1986 | Chevrolet | K10 Suburban Scottsdale | 4WD |
| 1977-1986 | Chevrolet | K10 Suburban Silverado | 4WD |
| 1981 | Chevrolet | K10 Suburban Deluxe | 4WD |
| 1983-1986 | Chevrolet | K10 Suburban Custom | 4WD |
| 1977-1980 | Chevrolet | K5 Blazer Cheyenne | 4WD |
| 1977-1980 | Chevrolet | K5 Blazer Custom Deluxe | 4WD |
| 1978-1986 | Chevrolet | K5 Blazer Silverado | 4WD |
| 1981 | Chevrolet | K5 Blazer Deluxe | 4WD |
| 1981-1986 | Chevrolet | K5 Blazer Custom | 4WD |
| 1984 | Chevrolet | K5 Blazer Scottsdale | 4WD |
| 1987 | Chevrolet | V10 Custom Deluxe | 4WD |
| 1987 | Chevrolet | V10 Scottsdale | 4WD |
| 1987 | Chevrolet | V10 Silverado | 4WD |
| 1987 | Chevrolet | V10 Suburban Custom Deluxe | 4WD |
| 1987-1988 | Chevrolet | V10 Suburban Scottsdale | 4WD |
| 1987-1988 | Chevrolet | V10 Suburban Silverado | 4WD |
| 1989-1991 | Chevrolet | V1500 Suburban Scottsdale | 4WD |
| 1989-1991 | Chevrolet | V1500 Suburban Silverado | 4WD |
| 1977-1982 | GMC | Jimmy Sierra Grande | 4WD |
| 1977-1985 | GMC | Jimmy High Sierra | 4WD |
| 1977-1990 | GMC | Jimmy Sierra Classic | 4WD |
| 1977-1991 | GMC | Jimmy Base | 4WD |
| 1977 | GMC | K15 Indy Hauler | 4WD |
| 1977-1978 | GMC | K15 Base | 4WD |
| 1977-1978 | GMC | K15 High Sierra | 4WD |
| 1977-1978 | GMC | K15 Sierra Classic | 4WD |
| 1977-1978 | GMC | K15 Sierra Grande | 4WD |
| 1979-1982 | GMC | K1500 Sierra Grande | 4WD |
| 1979-1986 | GMC | K1500 Base | 4WD |
| 1979-1986 | GMC | K1500 High Sierra | 4WD |
| 1980-1986 | GMC | K1500 Sierra Classic | 4WD |
| 1977-1978 | GMC | K15 Suburban Base | 4WD |
| 1977-1978 | GMC | K15 Suburban High Sierra | 4WD |
| 1977-1978 | GMC | K15 Suburban Sierra Classic | 4WD |
| 1977-1978 | GMC | K15 Suburban Sierra Grande | 4WD |
| 1987 | GMC | V1500 Base | 4WD |
| 1987 | GMC | V1500 High Sierra | 4WD |
| 1987 | GMC | V1500 Sierra Classic | 4WD |
- Tire size: 33″ to 35″ tall
- Lift height: 4″
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.
Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.
3-Year Finish Warranty on all painted and powder-coated surfaces.
3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.
Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.
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