Dirt King Boxed Heim Upper Control Arms [Silverado ZR2]

There are multiple issues when lifting your vehicle with stock upper control arms. Both the geometry and strength are compromised due to over articulating the stock arms. We solved these problems by designing our upper control arms with increased castor and repositioned pivot angles reducing stress on the joints. The increased castor allows for proper alignment and improved handling. We also replaced the weak factory ball joints with 1” stainless steel uniballs for maximum strength and increased articulation. For the inner pivots we used heavy duty ¾” FK heims for additional camber and caster adjustability. To mount the arms to the spindle we include high grade 17-4 stainless steel misalignment spacers and military grade F911 hardware. All of the components on our upper control arms are rebuild-able or replaceable to make this product last a lifetime. The arms come preassembled and include detailed instructions for easy installation.

Features:

• Wheel Travel: Additional 2” of travel compared to stock
• Amount of Lift: Allows for 0-3” of lift
• Track Width: Stock
• Maximum Backspacing: 4.75”
  
• Minimum Rim Size: 17”
• Coil over Shock Size:Factory or OEM replacement coilovers

Includes: 

• Boxed plate upper control arms
• 1” FK uniballs
• 3/4" FK heim joints
• 17-4 stainless steel misalignment spacers
• Durable black powder coat
• Dirt King sticker pack
• Installation instructions

Fitment:

• 2021+ Silverado ZR2
• 2021+ GMC AT4X

DK-636903