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2000 - 2008 Chevy/GMC 3/4-ton K2500HD Pickup 4WD

6"-7.5" Bracket Style Lift System

Superlift's bracket lift method, first developed in 1999, is still known as the GM system to have. Lowering the factory upper and lower control arms in relation to the frame brings ride height up. By utilizing the factory control arms and torsion bars, we are able to retain stock alignment geometry and ride quality. Note the variable front lift height range (6" to 7.5"); height is determined by torsion bar adjustment. The most popular rear lift height is 5" via blocks, although different height blocks and add-a-leafs are available. 5" replacement rear springs are offered for the 2500 (non-HD) series.

The front differential assembly is also lowered to keep CV axle angles in check. This is accomplished by using two, one-piece tubular cross members that span from frame rail-to-frame rail. Superlift's new control arm brackets connect to these cross-members along with "kicker" braces to form an exceptionally strong assembly. Steering linkage geometry is addressed by relocating the factory centerlink, which keeps the tie rods in phase with the lower control arms. A greasable stabilizing link regulates centerlink movement, and reduces the load and stress transmitted to the pitman and idler arms.

Product Details   Quantity  
 
K309 MASTER PACK  
K309B MASTER PACK  
K309R MASTER PACK  

Optional Components

Part # Description Price Quantity  
3287 DR-SHAFT, GM W/AUTOTRAC Call
3296 SKID PLATE FLAME LOGO STAINLESS Call
33003 TRU-SPEED CALIBRATOR, GM Call
3303 SKID PLATE & KICKER BRACE Call
3305 KICKER BRACES, 2500 HD Call
34000 TRUSPEED ABS RECALIBRATOR Call
92040 CYLINDER, STEERING STAB. Call

Application Notes

  • 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.
  • With single exhaust, a new, reformed section of exhaust crossover pipe is required to clear front driveshaft.
  • Special puller tool is recommended to load / unload torsion bars.
  • 2007 models require part # 15252696 & 15150104 to be purchased from the dealership in order to install front driveshaft.
  • 34000 needed only if vehicle has 4.56 or lower (numerically higher) axle ratio, corrects ABS signal.

Installation Instructions

More Information

Superlift’s bracket lift method, first developed in 1988, is still known as the GM system to have. Lowering the factory upper and lower control arms in relation to the frame brings ride height up. By utilizing the factory control arms and torsion bars, we are able to retain stock alignment geometry and ride quality. Note the variable front lift height range (6" to 7.5"); height is determined by torsion bar adjustment. The most popular rear lift height is 5” via blocks, although different height blocks and add-a-leafs are available. 5” replacement rear springs are offered for the 2500 (non-HD) series.

The front differential assembly is also lowered to keep CV axle angles in check. This is accomplished by using two, one-piece tubular cross members that span from frame rail-to-frame rail. Superlift’s new control arm brackets connect to these cross-members along with “kicker” braces to form an exceptionally strong assembly. Steering linkage geometry is addressed by relocating the factory centerlink, which keeps the tie rods in phase with the lower control arms. A greasable stabilizing link regulates centerlink movement, and reduces the load and stress transmitted to the pitman and idler arms.

Shock options include: Superide (gas front, hydraulic rear), Superide Select Series (SS) high-pressure monotube gas-charged shocks produced for Superlift by Bilstein, or SSR remote reservoir gas monotube shocks. Vehicles equipped with Autotrac transfer case require a replacement front driveshaft. In some cases, non-Autotrac equipped vehicles require the new shaft as well.

Main Features

  • Retains factory ride quality, steering geometry and CV axle angles
  • Front track width not increased
  • Front lift height range of 6" to 7.5"
  • Full-width differential / control arm crossmembers provide lateral rigidity
  • Cross-member kicker braces add strength front-to-rear
  • Load bearing bracketry made of .25" thick plate steel or DOM tubing
  • Front differential housing does not require trimming
  • Centerlink stabilizing link makes steering more responsive and extends pitman / idler arm life
  • Steel skid plate protects front differential; brushed stainless steel plate with “flame” logo available
  • Your choice of three different performance shock options: Superlift Superide, Superide Select (SS) or Select with remote reservoir (SSR)
  • TruSpeed speed sensor calibrator available
  • Limited Lifetime Warranty

Tire / Wheel Recommendations

6" - 35 x 12.50 on a 8-9" wheel with a standard backspacing

7.5" - up to a 37 x 12.50 on a 8-9" wheel with a standard backspacing

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(888) 299-4692 · 300 Huey Lenard Loop · West Monroe, LA  71292 · www.superlift.com