
Rough Country · Authorized Dealer
6 Inch Lift Kit | 52 Inch Rr Springs | Chevy/gmc 3/4-ton Suburban/c25/k25 Truck (77-87)
$949.95
Price does not include installation.
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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.
Built for 3/4-ton Chevy and GMC owners who want a level stance and aggressive ground clearance, this 6-inch lift kit raises your truck front and rear equally for a factory-proportioned look without sacrificing ride quality. The kit combines lifted leaf springs front and rear with Rough Country's premium N3 shocks—10-stage variable nitrogen-charged units tuned for both on and off-road performance. You'll clear up to 37-inch tires with proper wheel backspacing.
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 Shock Pair (front) — 10-stage variable high-pressure nitrogen-charged shocks with 18mm spring-loaded piston rod and 54mm shock body for balanced on and off-road performance.
- N3 Shock Pair (rear) — Matched rear shocks for level ride height and consistent damping.
- 6-inch front leaf springs (qty 2) — Lifted springs that raise the front to match rear height while maintaining ride quality.
- 6-inch rear leaf springs (qty 2) — Lifted springs that maintain factory-proportioned geometry and ride angles.
- Raised steering arm — Corrects steering geometry after the lift to maintain proper caster and driveline angles.
- Brake line relocation brackets — Reposition brake lines to safe angles and prevent stress after lift installation.
- U-bolts and hardware — OEM-grade fasteners for secure spring and shock mounting.
- Bushing kit — Polyurethane bushings for durable suspension articulation.
Important notes
- This kit only fits models with 52-inch rear leaf springs. Verify your truck's rear spring length before purchase.
- If your vehicle is equipped with a front sway bar, drop brackets are recommended (sold separately, SKU 1019) to prevent binding after the lift.
- Vehicles with factory quad shocks (two front shocks per side) will use a single aftermarket N3 shock per side in this kit.
Why customers pick this at Road Runner
- Rough Country's lifetime replacement warranty backed by local service — we stand behind every kit we install.
- Professional alignment performed in-house as part of every lift install, ensuring your caster, camber, and steering geometry are corrected for long tire life.
- Brake line drops handled correctly — no rubbing, no safety compromise after the lift.
- Our techs install these kits every week on 3/4-ton Chevy and GMC trucks; they know the fitment and geometry cold.
- Same-day installation available, so you drive out leveled and ready for bigger rubber.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | Universal U-Bolt Kit | 7616 |
| 2 | 6in Rear Leaf Spring | Chevy/GMC C10/K10 Truck & SUV/K5 Blazer 4WD (73-91) | 8028 |
| 1 | S800012bshing Kit | Chevy C20/K20 Pickup (73-87) GMC C15/K15 Pickup (73-87) | 6070 |
| 1 | Installation Kit | Chevy 3/4-Ton Suburban (88-91) Chevy C20/K20 Pickup (77-87) | 7511 |
| 1 | Raised Steering Arm | Chevy/GMC C10/K10 C15/K15 Truck/Half-Ton Suburban/K5 Blazer (69-91) | 6600 |
| 2 | 6in Front Leaf Spring | Chevy/GMC C10/K10 Truck & SUV/K5 Blazer 4WD (73-91) | 8015 |
| 1 | N3 Shock Pair | 23173 |
| 1 | N3 Shock Pair | 23174 |
Features
- Increased ground clearance
- Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.
| Years | Make | Model | Drive |
|---|---|---|---|
| 1977-1980 | Chevrolet | K20 Custom Deluxe | 4WD |
| 1977-1981 | Chevrolet | K20 Cheyenne | 4WD |
| 1977-1986 | Chevrolet | K20 Scottsdale | 4WD |
| 1977-1986 | Chevrolet | K20 Silverado | 4WD |
| 1981 | Chevrolet | K20 Deluxe | 4WD |
| 1981-1986 | Chevrolet | K20 Custom | 4WD |
| 1977-1980 | Chevrolet | K20 Suburban Custom Deluxe | 4WD |
| 1977-1986 | Chevrolet | K20 Suburban Scottsdale | 4WD |
| 1977-1986 | Chevrolet | K20 Suburban Silverado | 4WD |
| 1981 | Chevrolet | K20 Suburban Deluxe | 4WD |
| 1981-1986 | Chevrolet | K20 Suburban Custom | 4WD |
| 1987 | Chevrolet | V20 Suburban Custom Deluxe | 4WD |
| 1987 | Chevrolet | V20 Suburban Scottsdale | 4WD |
| 1987 | Chevrolet | V20 Suburban Silverado | 4WD |
| 1977-1978 | GMC | K25 Base | 4WD |
| 1977-1978 | GMC | K25 High Sierra | 4WD |
| 1977-1978 | GMC | K25 Sierra Classic | 4WD |
| 1977-1978 | GMC | K25 Sierra Grande | 4WD |
| 1979-1982 | GMC | K2500 Sierra Grande | 4WD |
| 1979-1986 | GMC | K2500 Base | 4WD |
| 1979-1986 | GMC | K2500 High Sierra | 4WD |
| 1979-1986 | GMC | K2500 Sierra Classic | 4WD |
| 1979-1982 | GMC | K2500 Suburban Sierra Grande | 4WD |
| 1979-1986 | GMC | K2500 Suburban Base | 4WD |
| 1979-1986 | GMC | K2500 Suburban High Sierra | 4WD |
| 1979-1986 | GMC | K2500 Suburban Sierra Classic | 4WD |
| 1977-1978 | GMC | K25 Suburban Base | 4WD |
| 1977-1978 | GMC | K25 Suburban High Sierra | 4WD |
| 1977-1978 | GMC | K25 Suburban Sierra Classic | 4WD |
| 1977-1978 | GMC | K25 Suburban Sierra Grande | 4WD |
- Tire size: 35″ to 37″ tall
- Lift height: 6″
| Tire | Wheel | Offset |
|---|---|---|
| 37x13.50R15 | 15x8 | -39mm |
| 37x13.50R15 | 15x8 | +0mm |
| 37x13.50R15 | 15x8 | +1mm |
| 37x12.50R17 | 17x9 | -12mm |
| 37x12.50R18 | 18x9 | -12mm |
| 37x12.50R20 | 20x9 | -12mm |
- Install time: 6 - 8 hours
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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