Peak Suspension Tubular Upper Control Arms | 19+ Silverado / Sierra 1500 | ZR2 / AT4X

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 factory arms. We solved these problems by designing our arms with increased castor and repositioned the 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 machined delrin bushings with grease fittings for easy servicing. 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.

What’s in the Box: 

• Chromoly Upper Control Arms
• Delrin Bushings
• Grease Fittings
• FK Uniball
• Zinc Plated Bushing Washers
• Zinc Plated Inner Bushing Sleeves
• Durable Peak Signature Powdercoat
• Zip Ties