
Rough Country · Authorized Dealer
2 Inch Lift Kit | Rear Blocks | Chevy/gmc 3/4-ton Suburban/c20/k20 Truck/c25/k25 Truck (77-87)
$479.95
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 classic Chevy and GMC 3/4-ton owners who want a leveled stance without sacrificing ride quality, this 2-inch lift kit raises your front end to match the rear for a factory-like, more aggressive look. You'll gain improved ground clearance and the ability to fit up to 33-inch tires with proper wheel backspacing, all while preserving the balanced on-road and off-road performance Rough Country is known for.
Installed and serviced at Road Runner Wheels & Tires. Most leveling kits go in the same day. Call (678) 400-6467 to schedule.
What's included
- Front lifted leaf springs (pair) — Raise the front end to match rear height while maintaining ride quality and performance.
- 2-inch rear lift blocks — Keep the rear suspension geometry optimized after the front is lifted.
- N3 shock absorbers (pair) — Premium 10-stage variable high-pressure nitrogen-charged shocks with 18mm spring-loaded piston rod and 54mm shock body for smooth highway comfort and off-road capability.
- Brake line relocation brackets — Maintain proper brake-line angles and prevent stress on hoses after lifting.
- U-bolts and hardware — All fasteners needed for secure installation.
Important notes
- Vehicles equipped with a front sway bar should use drop brackets (SKU: 1019) — recommended to preserve suspension geometry and control.
- Vehicles with factory quad shocks (dual shocks per side) will use a single aftermatic shock per side in this kit.
- Maximum recommended tire size is 33 inches with proper wheel backspacing.
Why customers pick this at Road Runner
- Rough Country Lifetime Replacement Warranty backed by a local, authorized dealer.
- Professionally installed by techs who perform these kits every week — your truck gets the attention it deserves.
- In-house alignment performed as part of every lift install to correct caster and maintain proper driveline geometry.
- Premium N3 shocks tuned specifically for your vehicle — not a one-size-fits-all approach.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | Installation Kit | Chevy 3/4-Ton Suburban (88-91) Chevy C20/K20 Pickup (73-87) | 6512 |
| 2 | 2in Front Leaf Spring | Chevy/GMC C10/K10 Truck & SUV/K5 Blazer 4WD (73-91) | 8000 |
| 1 | Fr Inst Kit Sp Spr | Chevy C20/K20 Pickup (77-87) GMC C15/K15 Pickup (77-87) | 7562-2 |
| 1 | N3 Shock Pair | 23274 |
| 1 | N3 Shock Pair | 23292 |
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: 32″ to 33″ tall
- Lift height: 2″
| Tire | Wheel | Offset |
|---|---|---|
| 33x12.50R15 | 15x8 | +0mm |
| 33x12.50R15 | 15x8 | +1mm |
| 33x12.50R17 | 17x9 | -12mm |
| 295/70R17 | 17x9 | -12mm |
| 285/70R17 | 17x9 | -12mm |
| 275/70R17 | 17x9 | -12mm |
| 33x12.50R18 | 18x9 | -12mm |
| 305/60R18 | 18x9 | -12mm |
| 285/65R18 | 18x9 | -12mm |
| 33x12.50R20 | 20x9 | -12mm |
| 305/55R20 | 20x9 | -12mm |
| 285/55R20 | 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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