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1999 - 2006 GM ½-Ton 4WD Trucks and SUVs
Please select a lift system below for more information... « 2" to 3.5" Lift System 5" to 6" F.I.T. Series System 6" Standard System 6.5" to 7.5" Bracket System
Features
Application Guide
Installation Instructions
Kit Shot
Options
OVERVIEW
Choose lift height to see
tire/wheel recommendations The factory GM version of Independent Front Suspension (IFS) consists of springs, in the form of torsion bars, upper / lower control arms and a differential with Constant Velocity (CV) axle shafts. When lifting the GM IFS, the primary factors that ensure good vehicle driveability traits and component service life are: steering geometry, suspension travel control and CV axle operating angles. This statement holds true regardless of how much the vehicle is lifted, whether it is 2", 7.5" or anything in between.
* Pickups only
Superlift offers numerous lift heights and methods for these very popular vehicles. Step one in your decision making process is determining what size tire you wish to run (refer to chart above). Secondly, consider what the vehicle will be used for; will it be basic commuting or performance driving? For most lift heights, Superlift offers different products with corresponding levels of performance and cost. Each system's features are discussed in detail below:images/suspension/gm/99-PICKUP_12TON-V5.gif
2" to 3.5" Lift Systems
First, we have the 2" Front Leveling System for the truck or SUV owner that simply wants to level the front with the rear, and allow a little more fender clearance for a slightly larger tire. This same front system will adjust up to 3.5" of height. For pickups, we offer a package that contains a 1.5" rear block kit, or you can order 2" add-a-leafs or taller rear block kits a-la-carte. For SUVs with coil spring rear suspension, .75" tall rear coil seats are available. With .75" of rear lift, an SUV's front end must be raised approximately 2.75" to achieve a level stance.
For 2" Lift: Use up to a 31 x 11.5" tire on stock wheel. With 7.5" wide wheel use 5.5" backspacing. With 8" wide wheel use 5" back spacing.
For 3.5" Lift: Use up to a 33 x 12.5" tire on stock wheel. Maximum wheel width is 9"; use 5 to 5.5" backspacing. System height adjusts from 2" to 3.5" while unique adjustable compression travel-stops allow you to tune vehicle ride and handling characteristics
Pickup rear lift options include 1.5", 2", 2.5" and 3.5" rear blocks, or 2" add-a-leafs. .75" tall coil spacer available for SUVs
Both upper and lower control arms are lowered to ensure that proper alignment remains constant throughout the suspension travel cycle
Lower control arm brackets are full-width, one-piece crossmembers
Differential is lowered to optimize CV axle operating angles and service life
Dropped centerlink, with stabilizing link, corrects tie-rod geometry
Superlift Superide shocks (gas front, hydraulic rear) available. On models factory-equipped with Autoride electronic shocks or rear Air-Ride shocks, relocation brackets allow factory shocks to be retained
TruSpeed speed sensor calibrator available
Limited Lifetime Warranty
            36. Minor cutting and / or welding required.
       
images/suspension/gm/99-PICKUP_12TON-V3.gif
5" to 6" F.I.T. Performance Series Lift System
Superlift offers two different replacement knuckle systems. Both systems address all of the problems that have historically plagued knuckle lifts, plus they tout numerous new and unique performance enhancing features. The systems were modeled using the most current computer design software, allowing our engineers to tweak each component for optimum performance, thus ensuring the absolute best lift products available for the ½-ton GM.
For 5" lift: Use up to a 34 x 11.5" tire on 8" wide wheel with 4.625" back spacing.
For 6" lift: Use up to a 35 x 12.5" tire on 8" wide wheel with 4.625" back spacing. Note: Factory wheels clear the knuckles, but if oversized tires are used with factory wheels, the tires may make contact with the upper control arms. The factory spare can be used.
F.I.T. exclusive: Adjustable compression travel-stops allow you to tune vehicle ride and handling characteristics at your desired ride height (5" to 6")
F.I.T. exclusive: Front ride height is adjustable from 5" to 6"
Replacement cast ductile iron steering knuckles yield the best possible alignment specifications... zero degrees additional camber and toe angle change throughout the entire suspension travel cycle
One-piece, full-width, high-clearance lower control arm crossmembers made of .25" steel plate
F.I.T. exclusive: Frame Integrated Technology (F.I.T.) design uses interlocking crossmembers, belly-pan and countersunk fasteners to provide maximum protection and the strongest, most rigid subframe on the market
Longer factory style front anti-sway bar links prevent bar pre-load
Systems allow use of factory spare tire / wheel
Does not require replacement front driveshaft
Front differential's structural integrity is not compromised since reinforcement webbing is not cut
Bracketry available to allow the vehicle to easily be returned to stock height
Pickup rear lift options include blocks, a block and add-a-leaf combination, or replacement rear springs. SUVs use new rear coils
Your choice of three different performance shock options: Superlift Superide, Superide Select (SS) or Select with remote reservoir (SSR). On models factory-equipped with Autoride electronic shocks or rear Air-Ride shocks, relocation brackets allow factory shocks to be retained
TruSpeed speed sensor calibrator available
Limited Lifetime Warranty
    27. Special puller tool is recommended to load / unload torsion bars.
36. Minor cutting and / or welding required.
115. Larger-than-factory tires will require wheels with a maximum 4-5/8" backspacing. A factory wheel and tire can be used as a spare.
   
images/suspension/gm/99-PICKUP_12TON-V5.gif
 6" Standard Lift System
Superlift offers two different replacement knuckle systems. Both systems address all of the problems that have historically plagued knuckle lifts, plus they tout numerous new and unique performance enhancing features. The systems were modeled using the most current computer design software, allowing our engineers to tweak each component for optimum performance, thus ensuring the absolute best lift products available for the ½-ton GM.
For 6" lift: Use up to a 35 x 12.5" tire on 8" wide wheel with 4.625" back spacing.
Note: Factory wheels clear the knuckles, but if oversized tires are used with factory wheels, the tires may make contact with the upper control arms. The factory spare can be used.
Standard system gives 6" of front lift.
Replacement cast ductile iron steering knuckles yield the best possible alignment specifications...zero degrees additional camber and toe angle change throughout the entire suspension travel cycle.
One-piece, full-width, high-clearance lower control arm crossmembers made of .25" steel plate.
Standard System uses "industry standard" differential skid plate and kicker braces
Longer factory style front anti-sway bar links prevent bar pre-load
Systems allow use of factory spare tire / wheel
Does not require replacement front driveshaft
Front differential's structural integrity is not compromised since reinforcement webbing is not cut
Bracketry available to allow the vehicle to easily be returned to stock height
Pickup rear lift options include blocks, a block and add-a-leaf combination, or replacement rear springs. SUVs use new rear coils
Your choice of three different performance shock options: Superlift Superide, Superide Select (SS) or Select with remote reservoir (SSR). On models factory-equipped with Autoride electronic shocks or rear Air-Ride shocks, relocation brackets allow factory shocks to be retained
TruSpeed speed sensor calibrator available
Limited Lifetime Warranty
27. Special puller tool is recommended to load / unload torsion bars.
36. Minor cutting and / or welding required.
115. Larger-than-factory tires will require wheels with a maximum 4-5/8" backspacing. A factory wheel and tire can be used as a spare.
images/suspension/gm/99-PICKUP_12TON-V6S.gif
 6.5" to 7.5" Bracket Lift System
Ride height is increased by lowering both upper and lower control arms. A slight amount of factory torsion bar adjustment is available, hence the 6.5" to 7.5" lift height range. Both lower control arms, plus the front legs of the upper control arms, are anchored by crossmembers that span from frame rail-to-rail. The front differential assembly is also lowered to keep CV axle angles in check. Superlift's bracket lift method does not require front differential housing trimming, as is the case with most replacement knuckle systems.
For 6.5" lift: Use up to a 35 x 12.5" tire on 8" wide wheel with factory back spacing.
For 7.5" lift: Use up to a 36 x 12.5" tire on 9" wide wheel with factory back spacing. Retains factory ride quality, steering geometry, and CV axle angles
Front differential housing does not require trimming
Full-width control arm crossmembers provide lateral rigidity
Centerlink stabilizing link improves steering response and extends component service life
Longer factory style front anti-sway bar links prevent bar pre-load
Pickup rear lift options include blocks, a block and add-a-leaf combination, or replacement rear springs. SUVs use new rear coils
Includes rear and front shocks (front is a 2-per wheel system) with your choice of three different performance shock options: Superlift Superide, Superide Select (SS) or Select with remote reservoir (SSR). On models factory-equipped with Autoride electronic shocks or rear Air-Ride shocks, relocation brackets allow factory shocks to be retained
TruSpeed speed sensor calibrator available
Limited Lifetime Warranty
    1. 1997 and newer models with Autotrac require dual cardan driveshaft, shown in options. Non-Autotrac models may also need driveshaft if regularly driven in 4WD over 35 MPH.
25. Kit includes front dual shock mounting brackets and 6 shocks with yellow boots (2000 – 06 Tahoe / Yukon have 4 shocks and boots and utilizes stock rear shocks).
27. Special puller tool is recommended to load / unload torsion bars.
36. Minor cutting and / or welding required.
   
images/suspension/gm/99-PICKUP_12TON-V6.gif
 Note: General Motors ½-ton vehicles with IFS, manufactured from 1988-to-present, have relatively light-duty ball joints and steering linkage. We do not recommend using tires larger than 37" in diameter.
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(888) 299-4692 · 300 Huey Lenard Loop · West Monroe, LA 71292 · www.superlift.com
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