4" 2011-2015 GM 2500HD 4WD Ultimate Lift Kit | Jack-It, The Suspension Experts
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4" 2011-2015 GM 2500HD 4WD Ultimate Lift Kit

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Availability: In stock

Regular Price: $1,337.97

Special Price: $1,204.17


Quick Overview


(to lower 48 states)

4 inch Ultimate Suspension Lift Kit with Performance Shocks



4" 2011-2015 GM 2500HD 4WD Ultimate Lift Kit

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Our new 4 inch Ultimate System provides less lift than their 6 inch RTS system but still allows use of 35 inch tall tires for street and moderate offroad use. We have developed this system utilizing replacement upper control arms constructed of 1.50" OD .120" thick wall DOM tubing that attaches to heavy duty Fabtech ductile iron steering knuckles. The factory torsion bars remain in the stock position and use new forged adjusting keys to provide the proper amount of lift.

There is no loss of ground clearance with this system as the stock lower control arms, torsion bars and front differential do not need to be relocated.

This 4" Ultimate System will level the stance of the vehicle compared to the factory nose down rake with no change to the rear suspension. For those customers that require a factory nose down appearance an optional 1" rear block kit is available.

Features and Benefits:
- Mid lift height of 4 inches for use of 35 inch tall tires
- Tubular upper control arms include heavy duty extended range ball joints that provide an additional 2 inches of travel over stock
- No loss of ground clearance
- No cutting, welding or drilling required for installation 
- 35" tires max and most of the time this size of tire requires a bunch of trimming to clear. Jack-it recommends running a 33 tall tire with this kit
- this kit will reduce turning radius 

Fabtech Warranty


Installation Instructions

Additional Information

Item Number fab_k1055
Manufacturer Part Number k1055
MPN(UPC) 674866035430
Manufacturer Fabtech
Make Chevy, GMC
Model 2500 Heavy Duty Pickup, 3/4 Ton Heavy Duty Pickup
Year Spans 2011,2012,2013,2014,2015
Lift Height 4 inch
Notes Will not fit standard cab models. Will not fit 17 inch wheels. Stock 18 and 20 inch tires and wheels can be used. Larger tiers can not be installed on stock wheels.
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