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6" 1977-1991 Chevy 1 ton Pickup 4WD Premium Lift Kit by Jack-It Brand: Jack-It | SKU: GM737PR
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6" 1977-1991 Chevy 1 ton Pickup 4WD Premium Lift Kit by Jack-It

Brand: Jack-It | SKU: GM737PR
From $2,057.30

6" 1977-1991 Chevy 1 ton Pickup 4WD Premium Lift Kit by Jack-It

Brand: Jack-It | SKU: GM737PR
From $2,057.30

free shipping truck  FREE SHIPPING !!
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Product Description
More Information

This 6-inch lift kit for the Chevy 4WD 1-ton pickup is a special premium package that Jack-It has put together. It will allow for the use of larger-diameter tires and replace worn front and rear leaf springs. We use only high quality components from top brands like Skyacker and more in this kit.  Since 1994, we have specialized in lifted vehicles and know the importance of getting all the parts required to do the job correctly. This kit features extra components not found in a standard lift kit. 

This kit features Skyjacker front and rear leaf springs, which provide very good ride quality, performance, and reliability. Properly sized U-bolts with hardware are provided for the front and rear axles. A front sway bar shackle drop kit includes poly bushings and will maintain proper angles to eliminate binding.

Recognizing the challenges posed by aging components, we eliminate concerns by ensuring that 30-50-year-old spring bolts and bushings are replaced with fresh, high quality upgrades, guaranteeing longevity and durability.

The inclusion of a steering block maintains correct steering angles on the 4-bolt trunnion style Dana 60 front axle, keeping your full turning radius and handling in check. Extended stainless steel brake hoses are included, safeguarding against overstretching of outdated brake hoses during off-road excursions. 

Features and Benefits

  • Replaces worn front and rear leaf springs
  • The most complete 6-inch lift kit on the market
  • Allows for use of up to 36 x 12.5 tires, 15 x 8 wheels w/3.5 in backspacing (trimming may be required)
  • Only top-quality components

Premium Package Includes:

  • Front Skyjacker Softride Leaf Springs
  • Rear Skyjacker Softride Leaf Springs
  • Rear and Front Spring and Shackle Bolts, Nuts and Washers
  • Rear Replacement Shackles w/Bushings
  • Front Upper Shackle Bushings
  • Sway Bar Bushings
  • Front Sway Bar Drop Shackles
  • Front & Rear Stainless Steel Braided Extended Brake Lines
  • Raised Steering Block for Dana 60 Front End
  • Skyjacker BlackMax or M95 Shocks
  • Front and Rear U-Bolts

Installation Note:

These kits are designed to fit the single-wheel GM 1-ton 4WD models. All the front components will be installed on a dual rear-wheel vehicle. The rear components may or may not work on dual rear-wheel vehicles. A possible exhaust modification is needed for the crossover pipe to clear the front driveshaft at full droop. Also, check for bind on the front double cardon joint on the front drive shaft at full droop. You may have to clearance the ears or swap to a higher-angle joint.

Important Notes1. If the truck needs extra support for the front for the large bumper, diesel motor ECT. Order SKJ FLC160 fitted front add a leafs
2. Kit designed for single rear wheel vehicles.
3. Kit does not include extended bump stops
4. 8600 and greater GVWR 84-90 3/4 & 1 ton trucks and Suburban's if equipped with a load sensing valve on rear differential. Recommend eliminating the valve (SEE GM TSB 88-T-151)
5. Fits vehicles with 56 inch long rear leaf springs
6. If vehicle has upper rear contact overloads, will not be reinstalled.
7. Exhaust modifications may be necessary for front drive line to clear exhaust cross over.
8. Possible front CV will bind on 77 and newer trucks, you may need to grind for clearance.
9. Does not fit K3500 IFS models. Only V series sold axle models.
10. If vehicle has two piece rear driveline may have to shim down carrier bearing, (Crew Cab Models)
Vehicle Fitment
ModelPickup 1 ton
Year Fitment1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, 1978, 1977
Tech Specs
Manufacturer Part NumberGM737PR
Item Numbergm737pr-gm738pr-gm739pr-gm7340pr
Product LineLift Kits
Lift Height6 inch


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