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6" Performance System w/ Performance Shocks - 1988-98 GM K1500 4WD & 1992-99 GM Suburban/Blazer (2 Door)/Tahoe (4 Door) 4WD

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Included Shocks

In 1988 GM was the first to produce an IFS 4WD truck with torsion bars, which has been an industry standard ever since. Fabtech offers a 6" system for this vehicle that utilizes lower control crossmembers and extended length steering knuckle technology resulting in a quick installation and a great highway ride. The 1/4" thick crossmembers feature Fabtech's boxed design for superior strength and include an integrated front differential skid plate. The crossmembers gain strength with impact struts to help distribute front suspension impact loads. Also included in this system are extended front and rear bump stops brackets, billet sway bar links, torsion bar drop brackets and more. The rear of the vehicle receives lift from a 4" block and add-a-leaf system.


Ki# K1005

  • Use 35/12.50R15 tire w/ 15x8 wheels w/ 4 5/8” BS w/ minor trimming


Oty Part # Description
1 FTS21014BK Component Box 1
1 FTS21015BK Component Box 2
2 FTS7299 Front Performance Shocks
2 FTS7266 Rear Performance Shocks



6. Increases front track width 2” on each side.
7. 4 door Tahoe/Yukon models require OEM GM torsion bar crossmember, mounting brackets, isolators and hardware for a P/U or 2 door model.
10. Requires welding, exhaust, and possible front driveshaft mods.

Performance Shocks

Fabtech Performance Shocks have been designed to work in conjunction with each of our suspension systems, resulting in superior ride control. Features include high velocity 9-stage valving for excellent dampening capabilities and a closed cell insert to reduce shock fade at high speeds.

  • - Twin Tube Hydraulic Construction
  • - 9/16" Hardened Chrome Piston Rod
  • - 1 3/8" OD Piston
  • - Closed Cell Foam insert
  • - High Flow 9 Stage Valving
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Download PDF Instructions
FT21014i.pdf (924.8 KB)