4 Inch Lift Kit | 56 Inch RR Springs | Chevy / GMC 3 / 4-Ton Suburban / C25 / K25 Truck (77-87)
Mouse over the image to zoom. Double-tap and hold to zoom.
Rough Country
Rough Country

4 Inch Lift Kit | 56 Inch RR Springs | Chevy / GMC 3 / 4-Ton Suburban / C25 / K25 Truck (77-87)

Product Code: RC-25530

OVERVIEW

Give your truck an impressive upgrade, front to back with Rough Country’s 4" GM Suspension Lift System! This easy-to-install lift kit raises the front of your vehicle to be equal height with the rear for a leveled, better-than-stock look that gives an improved ride height and more aggressive appearance. This kit features a set of front lifted leaf springs allowing you gain additional ride height without sacrificing ride quality or performance. A set of rear leaf springs and brake line brackets are provided to keep everything at optimum angles for a factory-like ride, even after lifting. A set of Rough Country's premium N3 shocks are also included. These fine tuned 10-stage variable high-pressure Nitrogen charged shocks offer a fantastic blend of off-road action and smooth highway ride quality. With a durable 18mm spring-loaded piston rod and faster-cooling 54mm shock body. Get the wheels you want! Rough Country's 4" GM Suspension Lift System comes with everything you need to fit up to a 35" tire with proper wheel backspacing. Best of all, Rough Country's 4” GM Suspension Lift System is backed by our Lifetime Replacement Warranty.


Features

  • Increased ground clearance Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.

Notes

  • ONLY fits models with 56" rear leaf springs.
  • If vehicle is equipped with a front sway-bar, drop brackets are recommended. (SKU: 1019) Vehicles with factory quad shocks (2 front shocks per side) will simply use a single aftermarket shock.

Install Time

6 - 8 hours


Instruction

View Instruction Sheet

Fitment

  • 1977-1987 4WD Chevy C20/K20 Pickup
  • 1977-1987 4WD Chevy C20/K20 Suburban
  • 1977-1987 4WD GMC C25/K25 Pickup
  • 1977-1987 4WD GMC C25/K25 Suburban

Tire Fitment

View all 49 tire & wheel combinations
SizeWheelBolt PatternWheel OffsetNote
35x12.50R1515x88x6.5/8x165.1-19-
35x12.50R1515x88x6.5/8x165.1-18-
35x12.50R1515x88x6.5/8x165.1+0-
35x12.50R1515x88x6.5/8x165.1+1-
35x12.50R1717x8.58x6.5/8x165.1+0-
35x12.50R1717x8.58x6.5/8x165.1+1-
35x12.50R1717x98x6.5/8x165.1-12-
315/70R1717x98x6.5/8x165.1-12-
35x12.50R1717x98x6.5/8x165.1+0-
315/70R1717x98x6.5/8x165.1+0-
35x12.50R1717x98x6.5/8x165.1+1-
315/70R1717x98x6.5/8x165.1+1-
35x12.50R1818x8.58x6.5/8x165.1+0-
295/70R1818x8.58x6.5/8x165.1+0-
35x12.50R1818x8.58x6.5/8x165.1+1-
295/70R1818x8.58x6.5/8x165.1+1-
35x12.50R1818x98x6.5/8x165.1-12-
295/70R1818x98x6.5/8x165.1-12-
285/75R1818x98x6.5/8x165.1-12-
35x12.50R1818x98x6.5/8x165.1+0-
295/70R1818x98x6.5/8x165.1+0-
35x12.50R1818x98x6.5/8x165.1+1-
295/70R1818x98x6.5/8x165.1+1-
35x12.50R1818x108x6.5/8x165.1-25-
295/70R1818x108x6.5/8x165.1-25-
35x12.50R1818x108x6.5/8x165.1-19-
295/70R1818x108x6.5/8x165.1-19-
35x12.50R1818x108x6.5/8x165.1-18-
295/70R1818x108x6.5/8x165.1-18-
35x12.50R2020x98x6.5/8x165.1-12-
35x11.50R2020x98x6.5/8x165.1-12-
295/65R2020x98x6.5/8x165.1-12-
295/60R2020x98x6.5/8x165.1-12-
35x12.50R2020x98x6.5/8x165.1+0-
295/60R2020x98x6.5/8x165.1+0-
35x12.50R2020x98x6.5/8x165.1+1-
295/60R2020x98x6.5/8x165.1+1-
35x12.50R2020x108x6.5/8x165.1-25Minor Trimming
35x12.50R2020x108x6.5/8x165.1-19Minor Trimming
295/60R2020x108x6.5/8x165.1-19Minor Trimming
35x12.50R2020x108x6.5/8x165.1-18Minor Trimming
295/60R2020x108x6.5/8x165.1-18Minor Trimming
35x12.50R2020x128x6.5/8x165.1-44Trimming Required
35x12.50R2222x108x6.5/8x165.1-25Minor Trimming
35x12.50R2222x108x6.5/8x165.1-19Minor Trimming
285/55R2222x108x6.5/8x165.1-19-
35x12.50R2222x108x6.5/8x165.1-18Minor Trimming
285/55R2222x108x6.5/8x165.1-18-
35x12.50R2222x128x6.5/8x165.1-44Trimming Required

Sale Price CAD $1,259.95
Retail price CAD $1,259.95
This kit contains 7 products
1
N3 Shock Pair
N3 Shock Pair
Code: RC-23174
1
N3 Shock Pair
N3 Shock Pair
Code: RC-23204
1
Raised Steering Arm | Chevy / GMC C10 / K10 C15 / K15 Truck / Half-Ton Suburban / K5 Blazer (69-91)
Raised Steering Arm | Chevy / GMC C10 / K10 C15 / K15 Truck / Half-Ton Suburban / K5 Blazer (69-91)
Code: RC-6600
1
Fr Inst Kit Sp Spr | Chevy C20 / K20 Pickup (77-87) GMC C15 / K15 Pickup (77-87)
Fr Inst Kit Sp Spr | Chevy C20 / K20 Pickup (77-87) GMC C15 / K15 Pickup (77-87)
Code: RC-7562-2
1
Universal U-Bolt Kit
Universal U-Bolt Kit
Code: RC-7616
2
4in Spring | Chevy / GMC C10 / K10 Truck (73-87) / Half-Ton Suburban (73-91)
4in Spring | Chevy / GMC C10 / K10 Truck (73-87) / Half-Ton Suburban (73-91)
Code: RC-8002R
2
4in Rear Leaf Spring | Chevy / GMC C10 / K10 Truck & SUV / K5 Blazer 4WD (77-91)
4in Rear Leaf Spring | Chevy / GMC C10 / K10 Truck & SUV / K5 Blazer 4WD (77-91)
Code: RC-8026
3 Inch Lift Kit | Chevy / GMC 2500HD / 3500HD / Suburban 2500 / Yukon XL 2500 (01-10)
Previous
3 Inch Lift Kit | FT Code | M1 | Chevy / GMC 2500HD / 3500HD / Suburban 2500 / Yukon XL 2500 (01-10)
Next