4" Lift Kit - RR Spring - Chevy/GMC 69-72
4 Inch Lift Kit | RR Spring | Chevy/GMC C10/K10 C15/K15 Truck/Half-Ton Suburban (69-72)
Transform your truck's stance and capability
Upgrade your GM truck from front to back with Rough Country's 4" 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 features application-specific front and rear lifted leaf springs, delivering increased ground clearance without compromising ride comfort or control. By eliminating rear lift blocks, the kit ensures consistent lift and improved suspension geometry, resulting in a smooth, factory-like ride. Brake line brackets are also included to maintain proper alignment and safety throughout the suspension travel.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 4" lift offers enough clearance to run up to a 35" tall tire with proper backspacing, giving your truck the rugged stance it deserves.Limited lifetime warranty
Rough Country backs this kit with a limited lifetime warranty, giving you long-term confidence on and off the road.
Vehicle fitment & tire options
Vehicle fitment
- 1969-1972 Chevy Blazer (4WD)
- 1970-1972 GMC Jimmy (4WD)
- 1970-1972 GMC K25/K2500 Pickup (4WD)
- 1970-1972 GMC K15/K1500 Suburban (4WD)
- 1970-1972 GMC K15/K1500 Pickup (4WD)
- 1969-1972 Chevy K20 Pickup (4WD)
- 1969-1972 Chevy K10 Suburban (4WD)
- 1969-1972 Chevy K10 Pickup (4WD)
Tire / wheel / bolt pattern / offset / notes
35x12.50R15 / 15x8 / 6x5.5 / -19 / -
35x12.50R15 / 15x8 / 6x5.5 / -18 / -
35x12.50R16 / 16x8 / 6x5.5 / -12 / -
35x12.50R16 / 16x8 / 6x5.5 / -6 / -
305/70R17 / 17x8.5 / 6x5.5 / -12 / -
285/75R17 / 17x8.5 / 6x5.5 / -12 / -
35x12.50R17 / 17x8.5 / 6x5.5 / +0 / -
315/70R17 / 17x8.5 / 6x5.5 / +0 / -
305/70R17 / 17x8.5 / 6x5.5 / +0 / -
35x12.50R17 / 17x8.5 / 6x5.5 / +1 / -
315/70R17 / 17x8.5 / 6x5.5 / +1 / -
305/70R17 / 17x8.5 / 6x5.5 / +1 / -
35x12.50R17 / 17x9 / 6x5.5 / -19 / -
315/70R17 / 17x9 / 6x5.5 / -19 / -
305/70R17 / 17x9 / 6x5.5 / -19 / -
285/75R17 / 17x9 / 6x5.5 / -19 / -
35x12.50R17 / 17x9 / 6x5.5 / -18 / -
315/70R17 / 17x9 / 6x5.5 / -18 / -
305/70R17 / 17x9 / 6x5.5 / -18 / -
285/75R17 / 17x9 / 6x5.5 / -18 / -
35x12.50R17 / 17x9 / 6x5.5 / -12 / -
315/70R17 / 17x9 / 6x5.5 / -12 / -
305/70R17 / 17x9 / 6x5.5 / -12 / -
35x12.50R17 / 17x9 / 6x5.5 / +0 / -
315/70R17 / 17x9 / 6x5.5 / +0 / -
305/70R17 / 17x9 / 6x5.5 / +0 / -
35x12.50R17 / 17x9 / 6x5.5 / +1 / -
315/70R17 / 17x9 / 6x5.5 / +1 / -
305/70R17 / 17x9 / 6x5.5 / +1 / -
35x12.50R18 / 18x8.5 / 6x5.5 / +0 / -
295/70R18 / 18x8.5 / 6x5.5 / +0 / -
285/75R18 / 18x8.5 / 6x5.5 / +0 / -
35x12.50R18 / 18x8.5 / 6x5.5 / +1 / -
295/70R18 / 18x8.5 / 6x5.5 / +1 / -
285/75R18 / 18x8.5 / 6x5.5 / +1 / -
35x12.50R18 / 18x9 / 6x5.5 / -12 / -
295/70R18 / 18x9 / 6x5.5 / -12 / -
285/75R18 / 18x9 / 6x5.5 / -12 / -
35x12.50R18 / 18x9 / 6x5.5 / +0 / -
295/70R18 / 18x9 / 6x5.5 / +0 / -
285/75R18 / 18x9 / 6x5.5 / +0 / -
35x12.50R18 / 18x9 / 6x5.5 / +1 / -
295/70R18 / 18x9 / 6x5.5 / +1 / -
285/75R18 / 18x9 / 6x5.5 / +1 / -
295/70R18 / 18x10 / 6x5.5 / -25 / -
295/70R18 / 18x10 / 6x5.5 / -19 / -
295/70R18 / 18x10 / 6x5.5 / -18 / -
35x12.50R20 / 20x9 / 6x5.5 / -12 / -
295/65R20 / 20x9 / 6x5.5 / -12 / -
295/60R20 / 20x9 / 6x5.5 / -12 / -
35x12.50R20 / 20x9 / 6x5.5 / +0 / -
295/65R20 / 20x9 / 6x5.5 / +0 / -
295/60R20 / 20x9 / 6x5.5 / +0 / -
35x12.50R20 / 20x9 / 6x5.5 / +1 / -
295/65R20 / 20x9 / 6x5.5 / +1 / -
295/60R20 / 20x9 / 6x5.5 / +1 / -
35x12.50R20 / 20x10 / 6x5.5 / -25 / Minor Trimming
295/60R20 / 20x10 / 6x5.5 / -25 / Minor Trimming
35x12.50R20 / 20x10 / 6x5.5 / -19 / Minor Trimming
295/60R20 / 20x10 / 6x5.5 / -19 / Minor Trimming
35x12.50R20 / 20x10 / 6x5.5 / -18 / Minor Trimming
295/60R20 / 20x10 / 6x5.5 / -18 / Minor Trimming
35x12.50R20 / 20x12 / 6x5.5 / -44 / Trimming Required
35x12.50R22 / 22x10 / 6x5.5 / -25 / Minor Trimming
285/55R22 / 22x10 / 6x5.5 / -25 / -
35x12.50R22 / 22x10 / 6x5.5 / -19 / Minor Trimming
285/55R22 / 22x10 / 6x5.5 / -19 / -
35x12.50R22 / 22x10 / 6x5.5 / -18 / Minor Trimming
285/55R22 / 22x10 / 6x5.5 / -18 / -
35x12.50R22 / 22x12 / 6x5.5 / -44 / Trimming RequiredFeatures
- Boosted ground clearance: Gain the extra height needed for better off-road capability and obstacle clearance.
- Application-specific front & rear leaf springs: Engineered for a perfect fit and optimal ride quality.
- Clears 35-inch tires: Provides ample room to run up to a 35" tall tire with no rubbing.
- Premium N3 series shocks: Includes application-valved N3 shock absorbers for balanced on-road comfort and off-road control.
Product specifications
Product category: Susp Lift Kits 4wd
Manufacturer: Rough Country
Manufacturer part number: 18030
UPC: 843030150624
Country of origin: India
Manufacturer-listed weight: 227.00 lbs
Product notes & installation
Only fits models with 52" rear leaf springs.
If vehicle is equipped with a front sway-bar, drop brackets are recommended sku
1019.Rear spring measurement
To confirm rear spring size a measurement will have to be pulled from eyelet to eyelet. For a visual, please click here.Estimated installation time: 6-8 hours
Included components
Front components
- Lifted leaf springs
- Brake line relocation brackets
- U-bolts
- Hardware
Rear components
- Lifted leaf springs
- U-bolts
- Hardware
Refund Policy
Returns accepted within 30 days of purchase. Items must be unused, in original packaging, and include proof of purchase. Restocking fees may apply. Non-returnable items: custom orders, electrical parts, and used products. For full details, visit our Refund Policy page.
