2019-21 Chevy Silverado, Trail Boss, GMC Sierra, AT4 1500 Uniball Upper Control Arms

With aggressive off-road use, the stock ball joint upper control arms can become worn and will eventually fail. Upgrade to the Fabtech Upper Control arms with 1" FK Stainless PTFE lined Uniballs for increased front suspension strength and additional caster that provide superior performance with oversized tires.

This is an excellent upgrade for stock or lifted systems to provide demanding drivers the very best for their Silverado or Sierra 1500. These controls arms will help reduce road noise at the same time providing greater longevity.

• Arms eliminate factory upper ball joint with super strong 1" ID Stainless Steel American Uniball for increased suspension strength
• Additional caster is built into Arms for enhanced align ability with oversized tires
• 1.50" OD .120" wall 4130 Chromoly tubing reduces flex found in stock arms for more positive road feel
• 17-4 Heat treated Uniball pin fits into factory ball joint taper without modification to the spindle for easy return to stock feature
• 17-4 Stainless steel misalignments for proper clearance of large Uniballs throughout the travel range
• .250 wall DOM bushing barrels with welded gussets for strength

View installation instructions