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Fabtech’s 4″ Performance systems utilize their proven heavy duty construction and design features for a robust suspension upgrade. The 4″ system features high arched lower control arm crossmembers constructed of 1/4″ thick steel for maximum strength. The Fabtech ductile iron steering knuckles retain the near stock track width keeping tires under the fender for a clean appearance. Rear lift is accomplished with a block and u-bolt configuration
Fabtech’s 4″ Performance systems utilize their proven heavy duty construction and design features for a robust suspension upgrade.

• Heavy Duty 1/4? Thick, High Arched Crossmember
• Heavy Duty Torsion Drop Brackets
• 1/4 in. Thick Lower Control Arms
• Ductile Iron Steering Knuckles
• Front Differential Skid Plate
• Retains Proper CV Angles
• Rear Block & U-bolt Kit

Fabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software, fabrication equipment along with our seasoned engineers and fabricators allow the company to develop products that are constantly on the cutting edge. Fabtech has received numerous awards for our designs that continue to lead the market. Proper design in suspension development is key in providing a quality, trouble free product to the end consumer. Fabtech leads the industry with extensive research, design technology and rigorous testing that results in the highest performing, finest quality suspension system for the discerning offroad enthusiast.
Component Box; Box 3 of 3; For 4 in. Lift; For PN[K1123/K1123M/K1124DL/K1123DL];

• The Kits Are Made From The Highest Quality Materials
• Guarantee Superior Performance And Functionality
• Other Parts Required For A Complete Set

Fabtechs cutting edge RTS(TM) system has now been developed for the all new GM HD platform. The 6 RTS(TM) utilizes a patent pending bracket system that keep the torsion bars raised up, in the stock location. This feature provides superior ground clearance at the frame as there are no torsion bars hanging down to become high centered on or damaged when offroading.. The 6 RTS(TM) system has been designed with unitized bracketry to retain the four front compression stops of the vehicle as GM intended. This distributes impact loads across a wide section of the frame rather than at a single point.High arched crossmembers and front differential skid plate are constructed of 1/4 thick steel to resist bending from hard front suspension impacts. Only 1/4 thick steel provides the rigidity and strength necessary to relocate the torsion bars, bump stops and lower control arms properly. Minimal heavy duty bracketry allow for a fast installation time with only two holes to drill and no cutting of the front diff housing. The 6 RTS(TM) system allows the use of both 18 and 20 diameter wheels.
Chevrolet, GMC 2011-19 3500HD 6″ RTS Suspension Lift Kit w/ Dirt Logic 2.25 Shocks

• Patent Pending Torsion Bar Brackets That Keep The Torsion Bars
• This Feature Provides Superior Ground Clearance At The Frame
• The All New RTS™ Raised Torsion Suspension System Utilizes
• This Industry Leading System Rewrites How An IFS Suspension
• System Should Function For Ultimate Offroad Use With Great
• As There Is No Torsion Bars Hanging Down To Become High
• Heavy Duty 1/4″ Thick, High Arched Crossmember
• Centered On Or Damaged When Offroading
• Raised Up In The Stock Location
• Ductile Iron Steering Knuckles
• Front Differential Skid Plate
• RTS® Torsion Bar Brackets
• Billet Sway Bar End Links
• Rear Block & U-bolt Kit
• Highway Manners

Fabtechs cutting edge RTS(TM) system has now been developed for the all new GM HD platform. The 6 RTS(TM) utilizes a patent pending bracket system that keep the torsion bars raised up, in the stock location. This feature provides superior ground clearance at the frame as there are no torsion bars hanging down to become high centered on or damaged when offroading.. The 6 RTS(TM) system has been designed with unitized bracketry to retain the four front compression stops of the vehicle as GM intended. This distributes impact loads across a wide section of the frame rather than at a single point.High arched crossmembers and front differential skid plate are constructed of 1/4 thick steel to resist bending from hard front suspension impacts. Only 1/4 thick steel provides the rigidity and strength necessary to relocate the torsion bars, bump stops and lower control arms properly. Minimal heavy duty bracketry allow for a fast installation time with only two holes to drill and no cutting of the front diff housing. The 6 RTS(TM) system allows the use of both 18 and 20 diameter wheels.
Raised Torsion Suspension Lift System; w/Performance Shocks; 6 in. Lift;

• Patent Pending Torsion Bar Brackets That Keep The Torsion Bars
• This Feature Provides Superior Ground Clearance At The Frame
• The All New RTS™ Raised Torsion Suspension System Utilizes
• This Industry Leading System Rewrites How An IFS Suspension
• System Should Function For Ultimate Offroad Use With Great
• As There Is No Torsion Bars Hanging Down To Become High
• Heavy Duty 1/4″ Thick, High Arched Crossmember
• Centered On Or Damaged When Offroading
• Raised Up In The Stock Location
• Ductile Iron Steering Knuckles
• Front Differential Skid Plate
• RTS® Torsion Bar Brackets
• Billet Sway Bar End Links
• Rear Block & U-bolt Kit
• Highway Manners

Fabtechs cutting edge RTS(TM) system has now been developed for the all new GM HD platform. The 6 RTS(TM) utilizes a patent pending bracket system that keep the torsion bars raised up, in the stock location. This feature provides superior ground clearance at the frame as there are no torsion bars hanging down to become high centered on or damaged when offroading.. The 6 RTS(TM) system has been designed with unitized bracketry to retain the four front compression stops of the vehicle as GM intended. This distributes impact loads across a wide section of the frame rather than at a single point.High arched crossmembers and front differential skid plate are constructed of 1/4 thick steel to resist bending from hard front suspension impacts. Only 1/4 thick steel provides the rigidity and strength necessary to relocate the torsion bars, bump stops and lower control arms properly. Minimal heavy duty bracketry allow for a fast installation time with only two holes to drill and no cutting of the front diff housing. The 6 RTS(TM) system allows the use of both 18 and 20 diameter wheels.
Raised Torsion Suspension Lift System; w/Stealth Monotube Shocks; 6 in. Lift;

• Patent Pending Torsion Bar Brackets That Keep The Torsion Bars
• This Feature Provides Superior Ground Clearance At The Frame
• The All New RTS™ Raised Torsion Suspension System Utilizes
• This Industry Leading System Rewrites How An IFS Suspension
• System Should Function For Ultimate Offroad Use With Great
• As There Is No Torsion Bars Hanging Down To Become High
• Centered On Or Damaged When Offroading
• Raised Up In The Stock Location
• Highway Manners

Fabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software, fabrication equipment along with our seasoned engineers and fabricators allow the company to develop products that are constantly on the cutting edge. Fabtech has received numerous awards for our designs that continue to lead the market. Proper design in suspension development is key in providing a quality, trouble free product to the end consumer. Fabtech leads the industry with extensive research, design technology and rigorous testing that results in the highest performing, finest quality suspension system for the discerning offroad enthusiast.
Component Box; Box 3 of 3; For 6 in. Lift; For PN[K1051/K1051M/K1051DL];

• The Kits Are Made From The Highest Quality Materials
• Guarantee Superior Performance And Functionality
• Other Parts Required For A Complete Set

Fabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software, fabrication equipment along with our seasoned engineers and fabricators allow the company to develop products that are constantly on the cutting edge. Fabtech has received numerous awards for our designs that continue to lead the market. Proper design in suspension development is key in providing a quality, trouble free product to the end consumer. Fabtech leads the industry with extensive research, design technology and rigorous testing that results in the highest performing, finest quality suspension system for the discerning offroad enthusiast.
Component Box; For 4 in. Lift; Incl. Dirt Logic Stainless Steel Shocks; For PN[K1056DL];

• Seasoned Engineers And Fabricators Allow The Company To Develop
• With Over 20 Years Experience In Aftermarket Suspension Design
• State Of The Art Software Fabrication Equipment Along With Our
• Products That Are Constantly On The Cutting Edge Fabtech Has
• Fabtech Development Capabilities Are Second To None With
• Received Numerous Awards For Our Designs That Continue
• To Lead The Market

Fabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software, fabrication equipment along with our seasoned engineers and fabricators allow the company to develop products that are constantly on the cutting edge. Fabtech has received numerous awards for our designs that continue to lead the market. Proper design in suspension development is key in providing a quality, trouble free product to the end consumer. Fabtech leads the industry with extensive research, design technology and rigorous testing that results in the highest performing, finest quality suspension system for the discerning offroad enthusiast.
Component Box; For 4 in. Lift; Incl. Performance Shocks; For PN[K1055];

• Everything You Will Need To Lift Your Vehicle
• No Driveshaft Change Required For Auto Trac
• Allows Use Of Stock Tires And Wheels
• Retains Factory Steering Centerlink
• Retains Factory Upper Control Arms
• Increased Caster For More Control
• Quick No Weld Installation

The 4 Budget System utilizes the factory front coil springs with a steel upper spacer providing 4 of lift. Radius Arm drop brackets retain the factory arms with correct caster setting for the increase ride height. System includes a Trac Bar relocation bracket that has been designed to center the axle under the vehicle and still works properly with the factory Pitman Arm. This eliminates the need to replace the Pitman Arm resulting in a lower cost and faster installation time. Rear lift is accomplished with lift blocks and extended length u-bolts. System allows installation of 35 tall tires with required inner fenderwell trimming for adequate tire clearance for street driving and light offroad use.
Budget Lift System w/Shock; w/Performance Shocks; 4 in Lift; Incl. Spindles; Upper Control Arms; Steering Knuckles; Torsion Keys; All Required Hardware;

• Retains Factory Front Coil Springs For Stock Ride
• This System Will Increase Offroad Capabilities
• And Provide A Good Highway Ride

Fabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software, fabrication equipment along with our seasoned engineers and fabricators allow the company to develop products that are constantly on the cutting edge. Fabtech has received numerous awards for our designs that continue to lead the market. Proper design in suspension development is key in providing a quality, trouble free product to the end consumer. Fabtech leads the industry with extensive research, design technology and rigorous testing that results in the highest performing, finest quality suspension system for the discerning offroad enthusiast.
Component Box; For 4 in. Lift; Incl. Stealth Monotube Shocks; For PN[K1055M];

• Simplified Design With Fast Install
• Steering Knuckles Retain Proper ESC
• No Loss Of Ground Clearance