Description

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 inches 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 2001-06 vehicles with the stock driveshaft. On late model 2007-08 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.

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.

Specifications

BrandFabtech
Part NumberK1015
Lift/Drop Height8
Weight356.9 lbs

Vehicle Fitment

Year(s)MakeModelBedSubmodelNotes
2001-2006ChevroletSilverado 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2006ChevroletSilverado 3500FleetsideBASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Sho cks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2001-2006ChevroletSilverado 3500FleetsideBASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2001-2006GMCSierra 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2001-2006GMCSierra 3500FleetsideBASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2005ChevroletSilverado 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differenti al Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2004ChevroletSilverado 3500FleetsideBASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bo lts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2004GMCSierra 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bea ring Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2003ChevroletSilverado 3500FleetsideBASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driv eshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2002GMCSierra 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper C ontrol Arms/Torsion Bar Drop Bracket
2001ChevroletSilverado 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~F ront And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2001GMCSierra 2500 HD-BASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Bracket s/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carrier Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket
2001GMCSierra 3500FleetsideBASEw/Performance Shocks; 8 in. Lift; Requires Exhaust Modification~8 in. Lift Use 37/12.50R17 Tire w/17x9 Wheel w/4.625 in BS w/Minor Trimming~Will Not Fit Vehicles w/Quadrasteer~8 in. Lift Use 37/13.50R20 Tires w/20X10 Wheels w/5 in. BS w/Minor Trim~Can Not Use OEM Wheel And Tire~Will Experience Some Loss Of Turning Radius~8 in. Lift Use 37/14.00R18 Tire w/18X9 Wheels w/5 in. BS w/Minor Trim~May Require Driveshaft Modification~Welding Required~Incl. Front Differential Drop Brackets/Skid Plate/CV Spacers~Front And Rear Shocks/All Required Hardware~Blocks/U-Bolts/Impact Strut And Rear Mount/Add-A-Leafs~Spindles/Weld-In Plate/Front Bump Stop Brackets/Rear Bump Stop~Crossmembers And Support Tube/Carri er Bearing Spacer/Ball Joints~Upper Control Arms/Torsion Bar Drop Bracket

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Fabtech P/N K1015

Lift Systems, Fleetside

$3,950.21

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Professional installation available
We install this! Labor runs $160/hour and suspension, wheel and tire work varies a lot by vehicle and setup — contact your local store for an exact installation quote.
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Built to orderShips direct from the manufacturer to your local H&H store. Call 800-953-7108 for lead times.

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Rated 4.8 across 24 stores

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Oxford · 1 day ago

Bedliner installed, in and out less than 20 minutes

Jonesboro · 1 day ago

Brian was so very professional and knowledgeable of the job he performed!!!

Lilburn · 2 days ago

I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.

Marietta · 3 days ago

Great service as always. Needed something quickly, the store had it in stock and was able to pickup within minutes. Justin was helpful and very accommodating. Highly recommend!

Gainesville · 3 days ago

Just had Arcane Warrior roof rack installed. Unbelievably quick and convenient service. Blake and Garrett were readily available and exceptionally personable. Highly recommend them for any and all truck accessory recommendations, provisions and installations!

Cumming · 4 days ago

Good pricing, fast service. Quality products.

Trussville · 4 days ago

Good experience. If you need truck accessories, these are the guys.

Madison · 4 days ago

⭐️⭐️⭐️⭐️⭐️ WOW – That’s How You Stand Behind Your Work H&H installed my airbags last year, and recently I ran into an issue where they stopped working. From the very first call, they were incredibly helpful and patient, walking me through troubleshooting over the phone trying to save me a trip. When we couldn’t get it resolved, I called first thing Monday morning and they had me scheduled right away. They got the truck in, diagnosed the issue, and replaced the parts — completely under warranty — no hassle, no excuses. A couple hours later I was back on the road. That’s rare service these days. Professional. Honest. Stand-up guys who truly stand behind their work. H&H is hands down the place to go for all your truck needs. 💪

Pensacola · 4 days ago

Very knowledgeable, great selection and fast install .

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