Sinister Diesel - Lift Kits for Duramax

10 inch Non Torsion Bar Drop 2WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD Single Wheel & 2013-Up Chevy/GMC 3500HD Dual Wheels with STABILITRAK DUAL rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 101040

Box - 101041

Box - 101042

Brake line 1019

Brake line 1020

WSE-R-1

WSE-F-1

10 inch 2WD front suspension lift system - 2011-2012 Chevy/GMC 3500HD Dual Wheels with SINGLE rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 101040

Box - 101041

Box - 101042

Brake line 1019

Brake line 1015

WSE-F-1

10 inch 4WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD Single Wheel & 2013-Up Chevy/GMC 3500HD Dual Wheels with STABILITRAK DUAL rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 101040

Box - 101041

Box - 101042

Box - 101043

Brake line 1019

Brake line 1020

WSE-R-1

10 inch 4WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD Single Wheel & 2013-Up Chevy/GMC 3500HD Dual Wheels with STABILITRAK DUAL rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 101040

Box - 101041

Box - 101042

Box - 101043

Brake line 1019

Brake line 1015

WSE-F-1

4 inch Non Torsion Bar Drop 2WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 100430

Box - 100431

Box - 100432

4 inch Non Torsion Bar Drop 4WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 100430

Box - 100431

Box - 100432

Box - 100433

7 inch Non Torsion Bar Drop 2WD front suspension lift system - 2011-2012 Chevy/GMC 3500HD Dual Wheels with SINGLE rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 100730

Box - 100731

Box - 100732

Brake line 1021

Brake line 1022

7 inch Non Torsion Bar Drop 2WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD Single Wheel & 2013-Up Chevy/GMC 3500HD Dual Wheels with STABILITRAK DUAL rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 100730

Box - 100731

Box - 100732

Brake line 1021

Brake line 1022

7 inch Non Torsion Bar Drop 4WD front suspension lift system - 2011-Up Chevy/GMC 2500HD/3500HD Single Wheel & 2013-Up Chevy/GMC 3500HD Dual Wheels with STABILITRAK DUAL rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 100730

Box - 100731

Box - 100732

Box - 100733

Brake line 1021

Brake line 1022

7 inch Non Torsion Bar Drop 4WD front suspension lift system - 2011-2012 Chevy/GMC 3500HD Dual Wheels with SINGLE rear brake lines. Includes front and rear brake lines. Must use the proper length shocks from Cognito. Front kit only, refer to our Suspension Systems for a complete kit options.

System Includes:

Box - 100730

Box - 100731

Box - 100732

Box - 100733

Brake line 1021

Brake line 1022

Complete 2" Lift Kit! This Zone lift not only includes front torsion bar keys and a 2" block & U-bolt kit, but it also includes front shock relocation brackets so your stock shocks can still be used. Zone Offroad torsion bar keys are made in the USA and are 100% resonant frequency tested to ensure a solid casting. Once tested the keys are CNC machined to ensure the proper amount of lift for your vehicle. Only Zone Offroad lists torsion key fitment based on the RPO codes of your truck listed in the glovebox to ensure the correct fitment. No more guessing of what color key might have been installed from the factory.These keys and rear blocks are designed lift the front and rear of your truck 2 inches and maintain the factory stance. Zone Offroad shocks are available as an option to complement your kit.


Featured Technology & Benefits
Front Shock Relocation Brackets are Included
100% resonant frequency tested keys
Easy installation
Complete 2" both Front & Rear
Optional new longer custom valved front shocks are available


Important Notes!
Rear u-bolts will not fit dually applications.
Front shock relocation brackets or longer shocks recommended.
To determine whether a C1212 or C1213 kit is required, verify which RPO codes are shown on the "Service Parts Identification" sticker in the glove box to determine the factory installed torsion keys:
Any of the following RPO codes require the C1212 kit: FT2 - FT3 - FT4 - FT5 - FT6 - FT7
Any of the following RPO codes require the C1213 kit: FK2 - FK3 - FF6 - FF7 - FF8 - FF9


Quick Specs
Front Lift Height: 2?
Front Lift Method: Torsion Bar Keys
Rear Lift Height: 2?
Rear Lift Method: Block & U-bolt Kit
Install Time Hrs: 4
Difficulty Level 1-5: 1
Wheel Size: stock
Back Spacing: stock
Max Tire Size: 33 X 12.50

Complete 2" Lift Kit! This Zone lift not only includes front torsion bar keys and a 2" block & U-bolt kit, but it also includes front shock relocation brackets so your stock shocks can still be used. Zone Offroad torsion bar keys are made in the USA and are 100% resonant frequency tested to ensure a solid casting. Once tested the keys are CNC machined to ensure the proper amount of lift for your vehicle. Only Zone Offroad lists torsion key fitment based on the RPO codes of your truck listed in the glovebox to ensure the correct fitment. No more guessing of what color key might have been installed from the factory.These keys and rear blocks are designed lift the front and rear of your truck 2 inches and maintain the factory stance. Zone Offroad shocks are available as an option to complement your kit.


Featured Technology & Benefits
Front Shock Relocation Brackets are Included
100% resonant frequency tested keys
Easy installation
Complete 2" both Front & Rear
Optional new longer custom valved front shocks are available


Important Notes!
Rear u-bolts will not fit dually applications.
Front shock relocation brackets or longer shocks recommended.
To determine whether a C1212 or C1213 kit is required, verify which RPO codes are shown on the "Service Parts Identification" sticker in the glove box to determine the factory installed torsion keys:
Any of the following RPO codes require the C1212 kit: FT2 - FT3 - FT4 - FT5 - FT6 - FT7
Any of the following RPO codes require the C1213 kit: FK2 - FK3 - FF6 - FF7 - FF8 - FF9


Quick Specs
Front Lift Height: 2?
Front Lift Method: Torsion Bar Keys
Rear Lift Height: 2?
Rear Lift Method: Block & U-bolt Kit
Install Time Hrs: 4
Difficulty Level 1-5: 1
Wheel Size: stock
Back Spacing: stock
Max Tire Size: 33 X 12.50

When it comes time to lift your truck, Zone Offroad has just what you need. The two-inch Zone lift kit shown here is designed for the 2011 through 2017 Chevrolet Silverado and GMC Sierra Heavy-Duty trucks with the Duramax diesel engine and four-wheel drive.

The two-inch Zone lift kits come with everything you need to get extra clearance from your truck including the two-inch lift kit front and rear, front torsion bar keys, front shock extension spacers and rear two-inch blocks with u-bolts. These high-quality parts ensure proper fit, easy installation and long-lasting operation.

Zone Offroad Products was developed to bring you quality off-road products at the best value in the industry. Zone Offroad is an engineering and manufacturing division of Sport Truck USA with over 20 years of experience serving off-road enthusiasts.

This new addition to the Adventure Series lineup of lift systems is built around the Zone Offroad heavy-duty replacement upper control arms already available for the 2001-2010 2500/3500 platform. The arms are made from 3/16" steel that is precision laser cut, formed and fully welded. Preinstalled MOOG brand ball joints and rubber bushings provide an easy installation and long service life. The ball joint is positioned to compensate for the added lift and maintain a neutral position at ride height. To complement the improved upper ball joint angles, the kit address the other area often ignored at this lift height - the CV shafts. The new Adventure Series kit for the 2001-2010s includes a full differential drop system that relocates the differential down 2" for near stock angles at the 3" lift height. This is accomplished with a drop spacer on the passenger's side, (2) drop brackets for the front driver's mount and a integrated "half crossmember" for the driver's rear mount. A new different skid plate is included to protect the differential in its new position. The rear is lifted via a 2" block and u-bolts. Front and rear Nitro shocks are included.

Features:

• Fully welded, heavy duty upper control arms that dwarf the factory arms.
• Preinstalled replaceable ball joints and rubber bushings.
• Reposititioned ball joints to maintain a nuetral angle with added lift.
• Full differential drop system included to maintain proper CV shaft angles.
• Differential skid plate included.
• Rear height is adjusted with 2" blocks.

Specifications:

• Front Lift Height: 3
• Front Lift Method: Upper Control Arms
• Rear Lift Height: 2
• Rear Lift Method: Block
• Install Time Hrs: 3-4
• Difficulty Level 1-5: 3
• Wheel Size: 17″
• Back Spacing: 5″
• Max Tire Size: 33 x 12.50

Important Notes:

• Frame bracket mount modification required
• Torsion bar unloading/loading tool required
• Will not fit dually models
• To determine which kit # is required, verify which RPO codes are shown in the glovebox to determine the factory installed torsion keys.
• Any of the following RPO codes require the C1202/C1212/C31 kits: FT2 - FT3 - FT4 - FT5 - FT6 - FT7.
• Any of the following RPO codes require the C1203/C1213/C32 kits: FK2 - FK3 - FF6 - FF7 - FF8 - FF9.
• Any of the following RPO codes require the C32 kit: FK2 - FK3 - FF6 - FF7 - FF8 - FF9.

 

This new addition to the Adventure Series lineup of lift systems is built around the Zone Offroad heavy-duty replacement upper control arms already available for the 2001-2010 2500/3500 platform. The arms are made from 3/16" steel that is precision laser cut, formed and fully welded. Preinstalled MOOG brand ball joints and rubber bushings provide an easy installation and long service life. The ball joint is positioned to compensate for the added lift and maintain a neutral position at ride height. To complement the improved upper ball joint angles, the kit address the other area often ignored at this lift height - the CV shafts. The new Adventure Series kit for the 2001-2010s includes a full differential drop system that relocates the differential down 2" for near stock angles at the 3" lift height. This is accomplished with a drop spacer on the passenger's side, (2) drop brackets for the front driver's mount and a integrated "half crossmember" for the driver's rear mount. A new different skid plate is included to protect the differential in its new position. The rear is lifted via a 2" block and u-bolts. Front and rear Nitro shocks are included.

Features:

• Fully welded, heavy duty upper control arms that dwarf the factory arms.
• Preinstalled replaceable ball joints and rubber bushings.
• Reposititioned ball joints to maintain a nuetral angle with added lift.
• Full differential drop system included to maintain proper CV shaft angles.
• Differential skid plate included.
• Rear height is adjusted with 2" blocks.

Specifications:

• Front Lift Height: 3
• Front Lift Method: Upper Control Arms
• Rear Lift Height: 2
• Rear Lift Method: Block
• Install Time Hrs: 3-4
• Difficulty Level 1-5: 3
• Wheel Size: 17″
• Back Spacing: 5″
• Max Tire Size: 33 x 12.50

Important Notes:

• Frame bracket mount modification required
• Torsion bar unloading/loading tool required
• Will not fit dually models
• To determine which kit # is required, verify which RPO codes are shown in the glovebox to determine the factory installed torsion keys.
• Any of the following RPO codes require the C1202/C1212/C31N kits: FT2 - FT3 - FT4 - FT5 - FT6 - FT7.
• Any of the following RPO codes require the C1203/C1213/C32N kits: FK2 - FK3 - FF6 - FF7 - FF8 - FF9.
• Any of the following RPO codes require the C32N kit: FK2 - FK3 - FF6 - FF7 - FF8 - FF9.

This Zone Adventure Series boxed steel upper control arm design along with traditional torsion key technology in order to gain 3" of lift. By using the new fabricated arms, equipped with factory style ball joints and rubber bushings, the system is able to maintain a better quality ride and suspension travel over standard "leveling kits". In addition, a front differential drop is included to keep CV angles within the factory operating range.

Rear 2" blocks bring the rear up to give a very slight tail high stance allowing the truck to be used as it was intended without having a saggy ride. Front and rear Nitro shocks come standard to round out this simple yet advanced suspension system.



Featured Technology & Benifits

Heavy Duty Boxed Steel Upper Control Arms

Factory style ball joints and rubber bushings

Improved ride quality and suspension travel over standard "leveling kits"

Front and Rear Nitro Gas shocks included

Front differential drop included to correct CV shaft angles

Nets a slightly tail high stance with included 2" rear blocks

Clear 35x12.50 tires on 18x9 & 20x9 wheels (6" backspacing required)

UCAs utilize a replaceable ball joint that can be found at most local auto parts stores if ever needed

Limited Lifetime Warranty

Over 90% Made in the USA






Important Notes

Minor trimming may be required, especially if a wheel backspace of less the specified is used

Proper torsion bar unloading tool required for installation

Not designed to work on dually models

Available for models with and without top mounted rear overload springs - be sure to select correct kit below for your application.

This Zone Adventure Series boxed steel upper control arm design along with traditional torsion key technology in order to gain 3" of lift. By using the new fabricated arms, equipped with factory style ball joints and rubber bushings, the system is able to maintain a better quality ride and suspension travel over standard "leveling kits". In addition, a front differential drop is included to keep CV angles within the factory operating range.

Rear 2" blocks bring the rear up to give a very slight tail high stance allowing the truck to be used as it was intended without having a saggy ride. Front and rear Nitro shocks come standard to round out this simple yet advanced suspension system.



Featured Technology & Benifits

Heavy Duty Boxed Steel Upper Control Arms

Factory style ball joints and rubber bushings

Improved ride quality and suspension travel over standard "leveling kits"

Front and Rear Nitro Gas shocks included

Front differential drop included to correct CV shaft angles

Nets a slightly tail high stance with included 2" rear blocks

Clear 35x12.50 tires on 18x9 & 20x9 wheels (6" backspacing required)

UCAs utilize a replaceable ball joint that can be found at most local auto parts stores if ever needed

Limited Lifetime Warranty

Over 90% Made in the USA






Important Notes

Minor trimming may be required, especially if a wheel backspace of less the specified is used

Proper torsion bar unloading tool required for installation

Not designed to work on dually models

Available for models with and without top mounted rear overload springs - be sure to select correct kit below for your application.