2011-2025 Duramax Ultimate Front End Package (ULTIMATE11)

Fits

Note: RTS Kits are intended for trucks fitted with lift knuckles that use oversized outer studs

The Kryptonite Ultimate Front End Package is, hands down, the best steering upgrade you can install on your Duramax. Eliminate any potential steering or suspension weaknesses with this 'overbuilt' steering and suspension kit. Idler supports are one of many significant pieces in this kit; they prevent wandering and improve handling predictability, thus minimizing stress on steering linkage and premature wear on tires.

If you can break them, Kryptonite will replace them. Whether you want something to replace your aging factory components, revamp your tow truck, or need to supe-up your front end to handle high HP-boosted launches, Kryptonite Suspension is the answer.

Part Number: Ultimate11

• Maintains factory ride quality & handling
• Increases steering response 
• Does not add stress to other factory components
• Inspired by the H1 Military Hummer

Includes:

• Kryptonite SS Series Center Link (KRCLP11)
• Kryptonite Death Grip Tie Rods (KRCLP11)
• Kryptonite Death Grip Idler Arm (11KDG018)
  
• Kryptonite Death Grip Idler Arm Support (KR280)
• Kryptonite Extreme Idler Support Gusset (KRGUSSET11)
• Kryptonite Death Grip Pitman Arm (KR419A)

• These do not work with Fabtech Lift Kits. These kits will only work on trucks that keep the center link in the factory GM position. If your truck is already lifted, make sure the kit you have is a spindle-style lift kit, not a control arm drop.
  
• If you are installing a Kryptonite Series center link on a leveled or lifted truck, you may need to install longer swaybar end links, depending on how high the torsion bars have been adjusted. We recommend the Kryptonite HD Swaybar End Links. This kit will only work on trucks that keep the center link in the factory position. If your truck has been lifted, make sure the lift kit you have is a spindle-style kit, not a control arm drop. This steering system is modeled after the Center Link on the H1 Military Hummer; this is a much stronger design when compared to what's offered from the factory on all non-Hummer GM HD Trucks. The Idler arm in this kit will not function properly with older style "Drop Centerlink" Lift kits. Or "Drop Control Arm" Lifts kits. For example, older Pro Comp and early 2000s Fabtech Kits. 

• Click here to view installation instructions