800-928-1984
Cart
Product Overview
The Kryptonite Upper Control Arm Kit is a heavy-duty upgrade engineered to outperform your stock GM upper control arms in every way. Built from high-strength boxed steel, laser cut and TIG welded in the USA, these arms are a direct fit upgrade that improves strength, alignment control, and suspension travel. Whether you're running stock suspension or have a mild to moderate lift, these control arms are designed to correct upper ball joint angles, reduce binding, and ensure long-term durability. Kryptonite UCAs also feature premium bolt-in ball joints and polyurethane bushings—pre-greased and ready to install. If your factory arms are worn out or your lifted truck feels sloppy up front, this is the upgrade you’ve been looking for.
Fits: GMC Sierra 3500HD 2020, 2021, 2022, 2023, 2024, 2025
Features:
- Boxed Arm Design – Laser-cut and TIG-welded for extreme strength and durability
- Made in the USA – Built with pride in small-town America and backed by Kryptonite’s lifetime warranty
- Bolt-On Upgrade – Compatible with stock or leveled 2500HD–3500HD trucks and many lift kits
- Upgraded Ball Joints Included – Includes Kryptonite bolt-on upper ball joints, pre-greased and ready to install
- Improved Ride & Alignment – Helps maintain factory geometry while improving strength and performance with added caster
- Pre-Greased with Chevron EP2 – Ready for installation; service every 5-7k miles
Kit Includes everything needed for installation;
- 1 x Kryptonite Upper Control Arm Pair
- 4 x Control arm sleeves
- 8 x Control arm Bushings
- 2 x Kryptonite Bolt on Upper Ball Joints
- 1 x Hardware package
Note: Clearance may be limited when using stock wheels with oversized tires (Wider than 11.50"). Will NOT fit AT4X & ZR2 models equipped with DSSV shocks.
Kryptonite Part Number KRUCA20
Brand (Manufacturer) Info
We are a privately owned company specializing in American-made steering and suspension components. Our products have been carefully developed and refined over many years to deliver optimal performance and durability. We are committed to providing the highest quality replacement parts and the best customer service in the industry. Our rigorous testing ensures that our parts can withstand the toughest conditions, guaranteeing you the best possible product. We take pride in building our components in the USA. Whether you're seeking reliable replacement parts for your daily commute or high-performance components to withstand the harshness of competition, Kryptonite Steering and Suspension Products are engineered to be the strongest on the market. For years, we've used the Heavy Duty full-sized Duramax Diesel truck platform as our proving ground, subjecting our products to countless miles of research and development. This has resulted in a product line that is renowned for exceptional quality and dependability. No matter if it's for work, play, or competition, you can trust Kryptonite Steering and Suspension Products. We confidently stand behind our products for as long as you own your truck or side-by-side.
