ICON 78720DJ Upper Control Arms .
ICON Upper Control Arms (78720DJ) for a 19-24 Silverado 1500, 21-24 Suburban, 21-24 Tahoe, 22-22 Silverado 1500 LTD, 19-24 Sierra 1500, 22-22 Sierra 1500 Limited, 21-24 Yukon and 21-24 Yukon XL. ICON 2019 GM 1500 Billet Upper Control Arm Delta Joint Kit
These upper control arms feature ICON's patent pending Delta Joint. The Delta Joint is a heavy duty high angle ball joint that combines the durability of a ball joint with the performance characteristics of a traditional uniball. While the industry standard uniball does a great job of allowing the control arms of a vehicle to articulate with little bind, they do have an inherent weakness that leaves more to be desired when used in a daily driven application - exposure to the elements. The Delta Joint features a zinc plated housing providing the first layer of corrosion resistance, while a tough grease seal keeps potentially harmful elements out of the inner workings of the joint. Metal on metal construction and a greasable design increase the longevity of the Delta Joint while at the same time allowing for noise-free operation. What makes the Delta Joint unique is that it brings the best of both worlds to ICON upper control arms with features that make it more robust than a uniball, and at the same time capable of greater angularity than a typical ball joint.