Established in 1975, SUPERLIFT Suspension Inc. was one of the first companies to develop and manufacture suspension lift kits.  Today, SUPERLIFT research and development teams continue to lead the nation in innovation and superior quality suspension systems.  The entire manufacturing process is done in house and allows for stringent controls that consistently produce exceptional, high quality American Made Suspension Systems!!  Do not be fooled by cheap manufactures that out source their leaf springs to China that sag after just a few months...

This 12" SuperLift suspension system consists of American Made Heavy Duty (HD) front leaf springs with durable Poly spring bushings and Teflon inserts between each leaf to ensure a quiet and smooth ride.  Replacement front u-bolts, front sway bar brackets, a front driveshaft spacer, brake hose relocation brackets and rear DOT braided stainless steel "bullet proof" brake line.

Rear add-a-leaf with 3" anti wrap lift blocks and u-bolt kit are used to lift the rear.  In addition this system comes with a 4" raised steering arm to compensate for the added height, a 4" adjustable drag link finally a 3" raised steering block is included as well.  The kit is packaged complete with Superlift Superide Nitro shocks.

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

Features:
  • 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
  • Front driveshaft spacer available
  • Superlift Superide shock absorbers included
  • Lifetime Warranty
  • Satisfaction Guarantee

Notes:

  • 1977.5-91 models require clearancing (machining) of the front driveshaft CV cluster to prevent binding. If vehicle has single exhaust, the cross-over pipe requires modification to clear front driveshaft.
  • Optional extended length brake hoses recommended.
  • Rear brake hose included in kit box.
  • Brake line / hose relocating hardware included in kit box.
  • 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.

Applicable Models:
  • 1973-1981 Chevrolet GMC 3/4-ton Suburban 4x4
  • 1973-1987 Chevrolet GMC 3/4-ton Pickup 4x4

Tires:

  • 40 x 15.50 tire on standard offset wheel

PLEASE NOTE: The provided tire/wheel fitments are approximate. Actual dimensions of a given tire size can vary considerably from one brand to another. Manufacturers’ wheel offset and backspacing measurement points are not always consistent. Backspacing greatly impacts tire-to-fender clearance when turning. Wheel width and backspacing influence whether the tires protrude past the fenders, and to what extent. Considering these important factors, we recommend that you fit-check your tire/wheel selection prior to purchasing.



Typically your lift kit will ship same day or next day but on rare occasions products can be on back order regardless of the number of in stock quantities shown; if time is critical please phone to make sure we have your lift kit in stock.


SHIPPING TO HAWAII, ALASKA AND PUERTO RICO REQUIRE ADDITIONAL SHIPPING.

PLEASE CONTACT US AT 702-267-6100 FOR SHIPPING QUOTE.



Please note:   We are a "Ma/Pa" brick and mortar shop currently accepting Paypal, cash in person and all major credit cards by phone.  If you have questions or need technical support, upgrades or accessories we can be reached most times at 702-267-6100.