The CST 2011 - 2019 Chevy & GMC 2500HD / 3500 Upper Arm Kit # CSS-C2-10 includes pre-installed Uni-balls with tapered pins that are designed for use with the factory GM steering knuckles. These upper control arms are a 100% bolt-on item. No cutting, welding, or machining is required to install them. CST has built this Upper Arm Kit to satisfy the demand of CST customers that wanted the strength of a uni-ball but in an easier to maintain and longer lasting design. CST redesigned their control arms and they now feature a sealed upper top cup design. This design effectively prevents dirt and contaminants from building up on top of the Uni-Ball and prevents premature wear.

If you've got a 2011 through 2019 model year Chevrolet Silverado 2500HD / 3500 or GMC Sierra 2500HD / 3500 truck this is a great suspension upgrade. Use of a Uni-Ball instead of a factory style ball-joint allows the CST upper control arm to operate at more severe angles without binding. When paired with the correct shock absorber this CST Control Arm Kit can provide increased suspension travel and better ride quality when the truck is driven on or off-road. Oil field and remote job site location guys (and gals) prefer this CST Upper Arm over the factory arm because the CST version can withstand severe off-road punishment for extended periods of time. If you've worn out or broken the factory ball-joint in your existing control arms this is an excellent upgrade!

CST Dirt Series Control Arm Features:

• 1026 DOM seamless tube construction.
• CNC Mandrel bent.
• Professionally Mig welded.
• Exclusive sealed-top uniball cup to keep dirt out and maximize uniball life.
• 1″ FK PTFE lined stainless steel uniballs maximize potential suspension travel.
• 17-4 stainless steel CNC machined taper pins.
• 17-4 stainless steel hi-misalign spacers provide corrosion resistance & O.E.M. like fitment.
• Greasable two stage polyurethane bushings pivots.
• Superior two stage gloss black powder-coat finish.
• CST Superior fit, function and finish. Made in the U.S.A.

This item includes everything necessary for installation. CST provides new bushings, sleeves and uniball taper pin hardware. Please note, you will reuse the factory control arm to frame mounting hardware.

For more information on this or any other CST Performance Suspension product please click on the Ask A Question link located at the very top of this page.