
Specifications
- Brand
- Fabtech
- Part #
- FTS21288
- UPC
- 674866110922

Fabtech 2020 GM K2500HD 3.5in Uniball Upper Control Arms
$840.28
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Fits 2020-2023 Chevrolet Silverado 2500 HD. Fabtech Uniball Upper Control Arms replace factory ball joints for increased strength and improved alignment with oversized tires.
Key Features
- Fits 2020-2023 Chevrolet Silverado 2500 HD, 2020-2021 Chevrolet Silverado 3500 HD, 2020-2023 GMC Sierra 2500 HD, and 2020-2021 GMC Sierra 3500 HD.
- Designed for use with 3.5-inch lift suspension systems.
- Replaces the factory upper ball joint with a strong 1-inch ID stainless steel Uniball for increased suspension strength.
- Includes additional caster compared to stock for improved alignment with oversized tires.
- Constructed from 1.50-inch OD, 0.120-inch wall 4130 Chromoly tubing for reduced flex and a more positive road feel.
- Features a heat-treated 17-4 stainless steel Uniball pin that fits the factory ball joint taper without spindle modification.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
When you're looking to beef up the front suspension on your 2020-2023 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD, especially if you're running a 3.5-inch lift, these Uniball Upper Control Arms from Fabtech are a solid choice. They replace the stock upper ball joint arms, which can be a weak point, particularly when you're pushing your truck hard off-road. These arms are built to handle aggressive use and are designed to last.
What you're getting here are arms constructed from strong 1.50-inch outer diameter, 0.120-inch wall 4130 Chromoly tubing, which means less flex than stock and a more direct feel on the road. They swap out the factory upper ball joint for a robust 1-inch ID American-made FK Uniball with a PTFE liner, giving you significantly increased suspension strength. Fabtech also builds in extra caster compared to the stock arms. This is a big help for getting proper alignment when you're running larger tires, improving on-road manners. The Uniball pin is made from heat-treated 17-4 Stainless Steel and fits directly into the factory ball joint taper on your spindle, so you don't need to drill anything, making it easy to go back to stock if needed. The misalignments are also 17-4 Stainless Steel, ensuring good clearance for the Uniball throughout its range of motion. On the frame side, you'll find quality urethane bushings designed to absorb road noise and offer good longevity.
This kit includes the upper control arms, featuring the Uniballs, pins, and misalignments. The urethane bushings for the frame side are also included. These arms are designed to work with your existing suspension or as part of a Fabtech lift system. They are specifically intended for use with 3.5-inch lift applications on the specified GM HD trucks.
Specifications
- Brand
- Fabtech
- Manufacturer Part #
- FTS21288
- UPC
- 674866110922
Frequently Asked Questions
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Fabtech 2020 GM K2500HD 3.5in Uniball Upper Control Arms
