Icon Vehicle Dynamics 78586DJ Upper Control Arm Kit Lift 0-2" Chevrolet Silverado/GMC Sierra 2500/3500 AT4/AT4X/ZR2 20-26

ICON Billet Aluminum Upper Control Arm Kit — 2020–2026 Silverado/Sierra 2500/3500 HD

Designed to improve front-end geometry, increase camber and caster adjustment, and improve suspension component clearance for 2020–2026 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD. Constructed from CNC-machined 6061 billet aluminum with a hybrid H-beam cross-section for lightweight strength and improved resistance to bending. Replaces the OE ball joint with the ICON Delta Joint Pro HD to allow full bump and droop travel while reducing binding. FK Rod End 3/4" heim joints are used at chassis pivots for precise, smooth function, and ICON’s double adjuster sleeve enables on-vehicle camber and caster adjustment. The kit includes all components and hardware necessary for a complete install.

The ICON Delta Joint Pro HD is a serviceable, rebuildable suspension articulation joint that combines factory-style durability with high-performance articulation. It features a larger ball for increased bearing surface, optimized lubrication channels, and a slotted housing that adds support to the lower bearing race for higher pull-out strength in heavy-duty truck applications — all while maintaining full, bind-free articulation.

• CNC-machined 6061 billet aluminum: satin-anodized finish with hybrid H-beam cross-section for reduced weight and superior resistance to bending compared to tubular arms.
• Corrects suspension geometry: allows proper wheel alignment on trucks with up to 3.5" of lift.
• On-vehicle adjustment: precise camber and caster adjustment via ICON’s double adjuster sleeve.
• ICON Delta Joint Pro HD: optimized for HD truck applications with a slotted housing for significantly increased pull strength.
• Maximum articulation: Delta Joint Pro HD provides 90° of articulation for full, bind-free suspension movement (improved range of motion versus the original design).
• Serviceable and rebuildable: all Delta Joint Pro HD components can be removed, inspected, and replaced without buying a complete joint.
• High-strength materials: chromoly ball and shaft with bearing surface hardened to Rockwell C55; replaceable graphite-impregnated sintered metal races machined to tight tolerances.
• Improved lubrication: redesigned lubricant channels distribute grease efficiently without extending past the bearing seal.
• FK Rod Ends: 3/4" heim joints at chassis pivots for strength and precise driving characteristics.
• Sealed protection: built-in O-ring sealed dust cover cap.

Icon Vehicle Dynamics 78586DJ Upper Control Arm Kit Lift 0-2" Chevrolet Silverado/GMC Sierra 2500/3500 AT4/AT4X/ZR2 20-26 - Features