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Fabtech 8'' Performance System w/Dirt Logic Shocks for 07-08 Chevrolet/GMC Silverado/Sierra 2500HD/3500 2wd/4wd


  • Provides 8'' of Lift
  • Performance Suspension System
  • Heavy Duty Construction
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Pricing: $3,753.10


The 8'' Performance Suspension System is accomplished via one-piece cast drop down steering knuckles attaching to heavy duty 1/4'' thick, high arched lower control arm crossmembers with tubular upper control arms. Fabtech's combination of steering knuckle, high arched crossmembers and upper control arms provides an excellent ride quality with high ground clearance. This system will provide a true 8'' of lift without adjustment to the torsion bars allowing the use of 37'' tall tires. The front differential is properly relocated to eliminate front driveshaft vibration on 2001-2006 vehicles with the stock driveshaft. On late model 2007-2008 vehicles with Magna 1625 transfer cases the system requires the use of a CV front driveshaft to address high speed 4wd use. New tubular upper control arms fit into the stock frame pockets using urethane bushings. Upper control arms include double shock mounting tabs for integration with Fabtech's optional front dual shock hoop system. The front suspension is completed with an differential skid plate, tubular crossmember supports and impact struts while the torsion bar drop down brackets properly align the torsion bars to the relocated stock lower control arms. The rear suspension is lifted using a 4'' block kit with 2'' Add-A-Leafs. The system is completed with rear bump stop brackets and a rear driveshaft carrier bearing drop bracket.

Tire Size:

  • Use 37x12.50R17 tires w/17x8 wheels w/4 5/8'' BS w/minor trimming
  • Use 37x14.00R18 tires w/18x9 wheels w/5'' BS w/minor trimming
  • Use 37x13.50R20 tires w/20x10 wheels w/5'' BS w/minor trimming


  • Non dually models only
  • Requires welding, exhaust, and possible front drive shaft mods
  • Does not fit models with Quadrasteer
  • Can not use OEM wheel and tire
  • Will experience some loss of turning radius
  • Front Driveshaft modification required or order CV Driveshaft (FTS91004)

Application List

2007-2008 Chevrolet Silverado 2500HD 4wd

2007-2008 GMC Sierra 2500HD 4wd

2007-2008 Chevrolet Silverado 3500 4wd

2007-2008 GMC Sierra 3500 4wd

2007-2008 Chevrolet Silverado 2500HD 2wd

2007-2008 GMC Sierra 2500HD 2wd

2007-2008 Chevrolet Silverado 3500 2wd

2007-2008 GMC Sierra 3500 2wd


Lift Type: Standard Kit

Lift Inches: 8''

Max Tire Size: 37''


  • K1030DB
  • K1030DB
  • Fabtech
  • New


Shipping Information

  • Item Requires Shipping
  • 373.3 lbs.
  • W3.0000” x H5.0000” x L20.0000”
  • This item will require a special quote for shipping charges.

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