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Our patented Radius Arms feature a full tubular structure strengthened by dimple die side plates, with an adjustable alignment cam at the axle to allow caster adjustment. Front spring lift options includes 6 replacement Coil Springs. Completing this system is a Trac Bar relocation bracket, Pitman Arm, Sway Bar drops, and a rear Block & U-bolt kit.
Radius Arm Lift System; 4 in. Lift; w/Dirt Logic 4.0 Coilovers; Rear Dirt Logic Shocks;

• Adjustable Alignment Cam Allows Caster Adjustment
• Unsurpassed Strength And Performance
• Patent Pending Radius Arms
• Fully Tubular Structure
• Dimple Die Side Plates

For the ultimate in suspension performance for the Super Duty we offer a bolt on 4 Link System that provides unsurpassed articulation and wheel travel. These 2 diameter heavy wall links feature race style 1 Uniballs for superior strength. Thick 1/4 steel brackets secure the 4 Links to the frame without cutting or welding. The system also includes Sway Bar Drops, Trac Bar relocation bracket, Pitman Arm, and U-Bolt kit.
4 Link Lift System; For 6 in. Lift; Incl. Front 4.0 DL Resi Coilovers/Rear DL 2.25 Shocks;

• Provides Unsurpassed Articulation And Wheel Travel
• Everything You Will Need To Lift Your Vehicle
• Race Style Uniball For Superior Strength
• Ultimate In Suspension Performance
• No Cutting Or Welding
• Heavy Wall Links

Our patented Radius Arms feature a full tubular structure strengthened by dimple die side plates, with an adjustable alignment cam at the axle to allow caster adjustment. Front spring lift options includes 6 replacement Coil Springs. Completing this system is a Trac Bar relocation bracket, Pitman Arm, Sway Bar drops, and a rear Block & U-bolt kit.
Radius Arm Lift System; For 6 in. Lift; Incl. Front DL 4.0 Resi Coilovers/Rear DL 2.25 Shocks;

• Adjustable Alignment Cam Allows Caster Adjustment
• Unsurpassed Strength And Performance
• Patent Pending Radius Arms
• Fully Tubular Structure
• Dimple Die Side Plates

Arms eliminate upper ball join w/super strong 1 ID stainless American uniball. Additional caster is built into arms for greater align ability to help with problematic leveling kit alignments. Allows for increased wheel travel when used w/Dirt Logic 2.5 coilover shocks. Chromoly tubing reduces flex found in stock arms for more positive road feel. 4340 heat treated uniball pin fits into factory ball join taper without modification to the spindle for easy return to stock feature. Arms are direct replacements for factory arms on suspensions that require additional strength and align ability.
Control Arm Kit; For 4 in. Lift; Front Upper; Uniball;

• Regulates Wheel Motion In Relation To Body
• Custom Engineered For High Quality Ride
• Upper Control Arm Kit

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 new 4 crossmember 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.
GMC/Chevy (Crew Cab Pickup/Extended Cab Pickup – 6.0, 6.6) 2011-19 2500HD 4″ Performance Suspension Lift Kit

• 1/4 in. Thick Lower Control Arms
• Heavy Duty Torsion Drop Brackets
• Retains Proper CV Angles

Fabtechs new 4 crossmember 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.
Crossmember Lift System; 4 in. Lift; w/Dirt Logic 2.25 Shocks;

• 1/4 in. Thick Lower Control Arms
• Heavy Duty Torsion Drop Brackets
• Retains Proper CV Angles

Fabtechs new 4 crossmember 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.
Crossmember Lift System; 4 in. Lift; w/Performance Shocks;

• 1/4 in. Thick Lower Control Arms
• Heavy Duty Torsion Drop Brackets
• Retains Proper CV Angles

Fabtechs new 4 crossmember 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.
Crossmember Lift System; 4 in. Lift; w/Stealth Shocks;

• 1/4 in. Thick Lower Control Arms
• Heavy Duty Torsion Drop Brackets
• Retains Proper CV Angles

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/DLSS 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 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
• Centered On Or Damaged When Offroading
• Raised Up In The Stock Location
• Highway Manners