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SUPERLIFT 12

SUPERLIFT 12" Lift Kit - 73-87 GM 1/2 Ton 4WD - Rr Spring Kit w/ SL Shocks
K430

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Monthly Payments

$1491


Free Lifted Shirt Included

Free shipping to the lower 48

Financing Available

Please allow 1-3 days to confirm the order with the manufacturer.

Part Number

K430-SUP

Details

  • Heavy Duty Front leaf springs
  • Durable Urethane spring eye bushings
  • Degree shim installed on the front springs to help driveline angle
  • Rear lift options include full replacement rear springs and a 3" block kit
  • Raised steering arm, raised steering block and drop drag link included
  • Sway bar drop brackets included
  • Rear brake hose included
  • Superlift shock absorbers included
This 12" lift system consists of Heavy Duty (HD) front leaf springs, durable Poly spring bushings, replacement front U-bolts, front sway bar brackets, a front driveshaft spacer, brake hose relocation brackets, rear brake hose, replacement rear leaf springs with Poly bushings, and a 3" block and u-bolt kit for the rear. For steering correction, a 4" raised steering arm, a 4" adjustable drag link, and a 3" raised steering block are also included. The kit is packaged complete with Superlift shocks.

Options include single and dual steering stabilizers, and a 4" rear shackle flip kit.

Install Time

4 hours
Difficulty level: 3 of 5

Notes


  • 1977-91 models require clearance (machining) of the front driveshaft CV cluster to prevent binding. If the vehicle has a single exhaust, the cross-over pipe requires modification to clear front driveshaft. Front driveshaft MUST be lengthened.

  • Optional extended length brake hoses recommended.

  • This is a SwampRunner Series lift system that is intended primarily for off-road or exhibition use. Reference the "Important Product Use" section of the Warranty for additional safety-related information.

  • If the vehicle is factory-equipped with auxiliary (dual) front shocks also order quantity two, part number 85150 Superide shocks.

  • 88-91 Suburban models require additional part number 315-88 bushing sleeve kit.

What's Included

  • Front and rear leaf springs
  • Shocks
  • Raised steering arm
  • Adjustable drag link
  • raised 3-bolt steering block
  • Rear block
  • U-bolt kit
  • All hardware required specific to the 1973-1991 4WD Chevrolet/GMC Ton Solid Axle Vehicles.
  • Detailed instruction manual walking you step-by-step through the lift kit installation procedures suitable for do-it-yourselfers (DIY) or professional installation.

Fitment

  • 1991 Chevrolet Blazer Scottsdale 4WD
  • 1991 Chevrolet Blazer Silverado 4WD
  • 1990 Chevrolet Blazer Scottsdale 4WD
  • 1990 Chevrolet Blazer Silverado 4WD
  • 1989 Chevrolet Blazer Scottsdale 4WD
  • 1989 Chevrolet Blazer Silverado 4WD
  • 1988 Chevrolet Blazer Scottsdale 4WD
  • 1988 Chevrolet Blazer Silverado 4WD
  • 1987 Chevrolet Blazer Custom Deluxe 4WD
  • 1987 Chevrolet Blazer Silverado 4WD
  • 1974 Chevrolet Blazer Base 4WD
  • 1973 Chevrolet Blazer Base 4WD
  • 1974 Chevrolet K10 Pickup Base 4WD
  • 1973 Chevrolet K10 Pickup Base 4WD
  • 1986 Chevrolet K10 Suburban Custom 4WD
  • 1986 Chevrolet K10 Suburban Scottsdale 4WD
  • 1986 Chevrolet K10 Suburban Silverado 4WD
  • 1985 Chevrolet K10 Suburban Custom 4WD
  • 1985 Chevrolet K10 Suburban Scottsdale 4WD
  • 1985 Chevrolet K10 Suburban Silverado 4WD
  • 1984 Chevrolet K10 Suburban Custom 4WD
  • 1984 Chevrolet K10 Suburban Scottsdale 4WD
  • 1983 Chevrolet K10 Suburban Custom 4WD
  • 1983 Chevrolet K10 Suburban Silverado 4WD
  • 1982 Chevrolet K10 Suburban Custom 4WD
  • 1982 Chevrolet K10 Suburban Scottsdale 4WD
  • 1982 Chevrolet K10 Suburban Silverado 4WD
  • 1981 Chevrolet K10 Suburban Custom 4WD
  • 1981 Chevrolet K10 Suburban Deluxe 4WD
  • 1980 Chevrolet K10 Suburban Custom Deluxe 4WD
  • 1980 Chevrolet K10 Suburban Scottsdale 4WD
  • 1980 Chevrolet K10 Suburban Silverado 4WD
  • 1979 Chevrolet K10 Suburban Custom Deluxe 4WD
  • 1979 Chevrolet K10 Suburban Scottsdale 4WD
  • 1979 Chevrolet K10 Suburban Silverado 4WD
  • 1978 Chevrolet K10 Suburban Custom Deluxe 4WD
  • 1978 Chevrolet K10 Suburban Scottsdale 4WD
  • 1977 Chevrolet K10 Suburban Custom Deluxe 4WD
  • 1977 Chevrolet K10 Suburban Scottsdale 4WD
  • 1977 Chevrolet K10 Suburban Silverado 4WD
  • 1976 Chevrolet K10 Suburban Custom Deluxe 4WD
  • 1976 Chevrolet K10 Suburban Scottsdale 4WD
  • 1976 Chevrolet K10 Suburban Silverado 4WD
  • 1975 Chevrolet K10 Suburban Custom Deluxe 4WD
  • 1975 Chevrolet K10 Suburban Scottsdale 4WD
  • 1975 Chevrolet K10 Suburban Silverado 4WD
  • 1974 Chevrolet K10 Suburban Base 4WD
  • 1973 Chevrolet K10 Suburban Base 4WD
  • 1991 Chevrolet K1500 Cheyenne 4WD
  • 1991 Chevrolet K1500 Scottsdale 4WD
  • 1991 Chevrolet K1500 Silverado 4WD
  • 1991 Chevrolet K1500 Sport 4WD
  • 1991 Chevrolet K1500 WT 4WD
  • 1990 Chevrolet K1500 Cheyenne 4WD
  • 1990 Chevrolet K1500 Scottsdale 4WD
  • 1990 Chevrolet K1500 Silverado 4WD
  • 1990 Chevrolet K1500 WT 4WD
  • 1989 Chevrolet K1500 Cheyenne 4WD
  • 1989 Chevrolet K1500 Scottsdale 4WD
  • 1989 Chevrolet K1500 Silverado 4WD
  • 1988 Chevrolet K1500 Cheyenne 4WD
  • 1988 Chevrolet K1500 Scottsdale 4WD
  • 1988 Chevrolet K1500 Silverado 4WD
  • 1986 Chevrolet K20 Suburban Custom 4WD
  • 1986 Chevrolet K20 Suburban Scottsdale 4WD
  • 1986 Chevrolet K20 Suburban Silverado 4WD
  • 1985 Chevrolet K20 Suburban Custom 4WD
  • 1985 Chevrolet K20 Suburban Scottsdale 4WD
  • 1985 Chevrolet K20 Suburban Silverado 4WD
  • 1984 Chevrolet K20 Suburban Custom 4WD
  • 1984 Chevrolet K20 Suburban Scottsdale 4WD
  • 1983 Chevrolet K20 Suburban Custom 4WD
  • 1983 Chevrolet K20 Suburban Silverado 4WD
  • 1982 Chevrolet K20 Suburban Custom 4WD
  • 1982 Chevrolet K20 Suburban Scottsdale 4WD
  • 1982 Chevrolet K20 Suburban Silverado 4WD
  • 1981 Chevrolet K20 Suburban Custom 4WD
  • 1981 Chevrolet K20 Suburban Deluxe 4WD
  • 1980 Chevrolet K20 Suburban Custom Deluxe 4WD
  • 1980 Chevrolet K20 Suburban Scottsdale 4WD
  • 1980 Chevrolet K20 Suburban Silverado 4WD
  • 1979 Chevrolet K20 Suburban Custom Deluxe 4WD
  • 1979 Chevrolet K20 Suburban Scottsdale 4WD
  • 1979 Chevrolet K20 Suburban Silverado 4WD
  • 1978 Chevrolet K20 Suburban Custom Deluxe 4WD
  • 1978 Chevrolet K20 Suburban Scottsdale 4WD
  • 1977 Chevrolet K20 Suburban Custom Deluxe 4WD
  • 1977 Chevrolet K20 Suburban Scottsdale 4WD
  • 1977 Chevrolet K20 Suburban Silverado 4WD
  • 1976 Chevrolet K20 Suburban Custom Deluxe 4WD
  • 1976 Chevrolet K20 Suburban Scottsdale 4WD
  • 1976 Chevrolet K20 Suburban Silverado 4WD
  • 1975 Chevrolet K20 Suburban Custom Deluxe 4WD
  • 1975 Chevrolet K20 Suburban Scottsdale 4WD
  • 1975 Chevrolet K20 Suburban Silverado 4WD
  • 1974 Chevrolet K20 Suburban Base 4WD
  • 1973 Chevrolet K20 Suburban Base 4WD
  • 1987 Chevrolet V10 Custom Deluxe 4WD
  • 1987 Chevrolet V10 Scottsdale 4WD
  • 1987 Chevrolet V10 Silverado 4WD
  • 1988 Chevrolet V10 Suburban Scottsdale 4WD
  • 1988 Chevrolet V10 Suburban Silverado 4WD
  • 1987 Chevrolet V10 Suburban Custom Deluxe 4WD
  • 1987 Chevrolet V10 Suburban Scottsdale 4WD
  • 1987 Chevrolet V10 Suburban Silverado 4WD
  • 1991 Chevrolet V1500 Suburban Scottsdale 4WD
  • 1991 Chevrolet V1500 Suburban Silverado 4WD
  • 1990 Chevrolet V1500 Suburban Scottsdale 4WD
  • 1990 Chevrolet V1500 Suburban Silverado 4WD
  • 1989 Chevrolet V1500 Suburban Scottsdale 4WD
  • 1989 Chevrolet V1500 Suburban Silverado 4WD
  • 1991 GMC Jimmy Base 4WD
  • 1990 GMC Jimmy Base 4WD
  • 1990 GMC Jimmy Sierra Classic 4WD
  • 1989 GMC Jimmy Base 4WD
  • 1989 GMC Jimmy Sierra Classic 4WD
  • 1988 GMC Jimmy Base 4WD
  • 1988 GMC Jimmy Sierra Classic 4WD
  • 1987 GMC Jimmy Base 4WD
  • 1987 GMC Jimmy Sierra Classic 4WD
  • 1986 GMC Jimmy Base 4WD
  • 1986 GMC Jimmy Sierra Classic 4WD
  • 1985 GMC Jimmy Base 4WD
  • 1985 GMC Jimmy High Sierra 4WD
  • 1985 GMC Jimmy Sierra Classic 4WD
  • 1984 GMC Jimmy Base 4WD
  • 1984 GMC Jimmy High Sierra 4WD
  • 1984 GMC Jimmy Sierra Classic 4WD
  • 1983 GMC Jimmy Base 4WD
  • 1983 GMC Jimmy High Sierra 4WD
  • 1983 GMC Jimmy Sierra Classic 4WD
  • 1982 GMC Jimmy Base 4WD
  • 1982 GMC Jimmy High Sierra 4WD
  • 1982 GMC Jimmy Sierra Classic 4WD
  • 1982 GMC Jimmy Sierra Grande 4WD
  • 1981 GMC Jimmy Base 4WD
  • 1981 GMC Jimmy High Sierra 4WD
  • 1981 GMC Jimmy Sierra Classic 4WD
  • 1981 GMC Jimmy Sierra Grande 4WD
  • 1980 GMC Jimmy Base 4WD
  • 1980 GMC Jimmy High Sierra 4WD
  • 1980 GMC Jimmy Sierra Classic 4WD
  • 1980 GMC Jimmy Sierra Grande 4WD
  • 1979 GMC Jimmy Base 4WD
  • 1979 GMC Jimmy High Sierra 4WD
  • 1979 GMC Jimmy Sierra Classic 4WD
  • 1979 GMC Jimmy Sierra Grande 4WD
  • 1978 GMC Jimmy Base 4WD
  • 1978 GMC Jimmy High Sierra 4WD
  • 1978 GMC Jimmy Sierra Classic 4WD
  • 1978 GMC Jimmy Sierra Grande 4WD
  • 1977 GMC Jimmy Base 4WD
  • 1977 GMC Jimmy High Sierra 4WD
  • 1977 GMC Jimmy Sierra Classic 4WD
  • 1977 GMC Jimmy Sierra Grande 4WD
  • 1976 GMC Jimmy Base 4WD
  • 1976 GMC Jimmy High Sierra 4WD
  • 1976 GMC Jimmy Sierra Classic 4WD
  • 1976 GMC Jimmy Sierra Grande 4WD
  • 1975 GMC Jimmy Base 4WD
  • 1975 GMC Jimmy High Sierra 4WD
  • 1975 GMC Jimmy Sierra Classic 4WD
  • 1975 GMC Jimmy Sierra Grande 4WD
  • 1974 GMC Jimmy Base 4WD
  • 1973 GMC Jimmy Base 4WD
  • 1984 GMC Jimmy Base RWD
  • 1984 GMC Jimmy High Sierra RWD
  • 1984 GMC Jimmy Sierra Classic RWD
  • 1983 GMC Jimmy Base RWD
  • 1983 GMC Jimmy High Sierra RWD
  • 1983 GMC Jimmy Sierra Classic RWD
  • 1982 GMC Jimmy Base RWD
  • 1982 GMC Jimmy High Sierra RWD
  • 1982 GMC Jimmy Sierra Classic RWD
  • 1982 GMC Jimmy Sierra Grande RWD
  • 1982 GMC Jimmy Street Coupe RWD
  • 1981 GMC Jimmy Base RWD
  • 1981 GMC Jimmy High Sierra RWD
  • 1981 GMC Jimmy Sierra Classic RWD
  • 1981 GMC Jimmy Sierra Grande RWD
  • 1981 GMC Jimmy Street Coupe RWD
  • 1980 GMC Jimmy Base RWD
  • 1980 GMC Jimmy High Sierra RWD
  • 1980 GMC Jimmy Sierra Classic RWD
  • 1980 GMC Jimmy Sierra Grande RWD
  • 1980 GMC Jimmy Street Coupe RWD
  • 1979 GMC Jimmy Base RWD
  • 1979 GMC Jimmy High Sierra RWD
  • 1979 GMC Jimmy Sierra Classic RWD
  • 1979 GMC Jimmy Sierra Grande RWD
  • 1979 GMC Jimmy Street Coupe RWD
  • 1978 GMC Jimmy Base RWD
  • 1978 GMC Jimmy High Sierra RWD
  • 1978 GMC Jimmy Sierra Classic RWD
  • 1978 GMC Jimmy Sierra Grande RWD
  • 1978 GMC Jimmy Street Coupe RWD
  • 1977 GMC Jimmy Base RWD
  • 1977 GMC Jimmy High Sierra RWD
  • 1977 GMC Jimmy Sierra Grande RWD
  • 1976 GMC Jimmy Base RWD
  • 1976 GMC Jimmy High Sierra RWD
  • 1976 GMC Jimmy Sierra Classic RWD
  • 1976 GMC Jimmy Sierra Grande RWD
  • 1975 GMC Jimmy Base RWD
  • 1975 GMC Jimmy High Sierra RWD
  • 1975 GMC Jimmy Sierra Classic RWD
  • 1975 GMC Jimmy Sierra Grande RWD
  • 1978 GMC K15 Base 4WD
  • 1978 GMC K15 High Sierra 4WD
  • 1978 GMC K15 Sierra Classic 4WD
  • 1978 GMC K15 Sierra Grande 4WD
  • 1977 GMC K15 Base 4WD
  • 1977 GMC K15 High Sierra 4WD
  • 1977 GMC K15 Indy Hauler 4WD
  • 1977 GMC K15 Sierra Classic 4WD
  • 1977 GMC K15 Sierra Grande 4WD
  • 1976 GMC K15 Base 4WD
  • 1976 GMC K15 High Sierra 4WD
  • 1976 GMC K15 Sierra Classic 4WD
  • 1976 GMC K15 Sierra Grande 4WD
  • 1975 GMC K15 Base 4WD
  • 1975 GMC K15 High Sierra 4WD
  • 1975 GMC K15 Sierra Classic 4WD
  • 1975 GMC K15 Sierra Grande 4WD
  • 1978 GMC K15 Suburban Base 4WD
  • 1978 GMC K15 Suburban High Sierra 4WD
  • 1978 GMC K15 Suburban Sierra Classic 4WD
  • 1978 GMC K15 Suburban Sierra Grande 4WD
  • 1977 GMC K15 Suburban Base 4WD
  • 1977 GMC K15 Suburban High Sierra 4WD
  • 1977 GMC K15 Suburban Sierra Classic 4WD
  • 1977 GMC K15 Suburban Sierra Grande 4WD
  • 1976 GMC K15 Suburban Base 4WD
  • 1976 GMC K15 Suburban High Sierra 4WD
  • 1976 GMC K15 Suburban Sierra Classic 4WD
  • 1976 GMC K15 Suburban Sierra Grande 4WD
  • 1975 GMC K15 Suburban Base 4WD
  • 1975 GMC K15 Suburban High Sierra 4WD
  • 1975 GMC K15 Suburban Sierra Classic 4WD
  • 1975 GMC K15 Suburban Sierra Grande 4WD
  • 1974 GMC K15/K1500 Pickup Base 4WD
  • 1973 GMC K15/K1500 Pickup Base 4WD
  • 1974 GMC K15/K1500 Suburban Base 4WD
  • 1973 GMC K15/K1500 Suburban Base 4WD
  • 1986 GMC K1500 Suburban Base 4WD
  • 1986 GMC K1500 Suburban High Sierra 4WD
  • 1986 GMC K1500 Suburban Sierra Classic 4WD
  • 1985 GMC K1500 Suburban Base 4WD
  • 1985 GMC K1500 Suburban High Sierra 4WD
  • 1985 GMC K1500 Suburban Sierra Classic 4WD
  • 1984 GMC K1500 Suburban Base 4WD
  • 1984 GMC K1500 Suburban High Sierra 4WD
  • 1984 GMC K1500 Suburban Sierra Classic 4WD
  • 1983 GMC K1500 Suburban Base 4WD
  • 1983 GMC K1500 Suburban High Sierra 4WD
  • 1983 GMC K1500 Suburban Sierra Classic 4WD
  • 1982 GMC K1500 Suburban Base 4WD
  • 1982 GMC K1500 Suburban High Sierra 4WD
  • 1982 GMC K1500 Suburban Sierra Classic 4WD
  • 1982 GMC K1500 Suburban Sierra Grande 4WD
  • 1981 GMC K1500 Suburban Base 4WD
  • 1981 GMC K1500 Suburban High Sierra 4WD
  • 1981 GMC K1500 Suburban Sierra Classic 4WD
  • 1981 GMC K1500 Suburban Sierra Grande 4WD
  • 1980 GMC K1500 Suburban Base 4WD
  • 1980 GMC K1500 Suburban High Sierra 4WD
  • 1980 GMC K1500 Suburban Sierra Classic 4WD
  • 1980 GMC K1500 Suburban Sierra Grande 4WD
  • 1979 GMC K1500 Suburban Base 4WD
  • 1979 GMC K1500 Suburban High Sierra 4WD
  • 1979 GMC K1500 Suburban Sierra Classic 4WD
  • 1979 GMC K1500 Suburban Sierra Grande 4WD
  • 1991 GMC V1500 Suburban Base 4WD
  • 1990 GMC V1500 Suburban Base 4WD
  • 1990 GMC V1500 Suburban SLE 4WD
  • 1989 GMC V1500 Suburban Base 4WD
  • 1989 GMC V1500 Suburban Sierra Classic 4WD
  • 1988 GMC V1500 Suburban Base 4WD
  • 1988 GMC V1500 Suburban Sierra Classic 4WD
  • 1987 GMC V1500 Suburban Base 4WD
  • 1987 GMC V1500 Suburban High Sierra 4WD
  • 1987 GMC V1500 Suburban Sierra Classic 4WD

**This part fits a ton of vehicles, so let’s check to see if it fits yours. Don’t see it on the list above? No worries, type your vehicle in the search bar above to see the full list of compatible vehicles.**


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Custom Offsets is a one-stop solution for all your custom car and truck needs, be it wheel and tire packages, suspensions, performance parts, or replacement parts such as spiked lug nuts, spacers, fender flares, bumpers, and many more. With such an extensive range of aftermarket parts and accessories, you're sure to find exactly what you're looking for, right here.

Plus we make it really easy to not only find the required parts but also visualize exactly how your ride will look. Search by vehicle, wheel specs, tire sizes, and suspension setup to compare fitment. Our fitment gallery features pictures of thousands of rides with details of the parts and accessories such as offsets, diameter, width, and tire specs. It's easy to see why we're the largest and most popular fitment gallery across the globe today.

Shipping
Shipping times vary depending on item and immediate availability. Many suspension kits will ship out within 3-5 business days while some select items may take up to 7-10 business days. You will receive the tracking information via email as soon as it is available so you can easily track your package(s) from us, to your door. Keep in mind, some suspension components may ship separately and could arrive at different times. All shipping prices are based on the lower 48 states unless specified otherwise. Always inspect your items immediately upon receipt and notify us within 5 business days if there are any concerns, damages, or missing items.

Warranty
All manufacturer warranties apply and we will support you as the customer in ensuring you get a quality product. For any questions or concerns please email info@customoffsets.com NOTE: Returns not related to a warranty issue may result in a 20% shipping, handling, and restocking fee.

WARNING: This product can expose you to Nickel, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to p65warnings.ca.gov.

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