Fabtech 2020 GMC Sierra 2500HD/3500HD Upper Control Arm Lift System – 3.5 Inch Lift for Improved Performance and Clearance

This new 4 System capitalizes on Toyota Tundras large wheelwell opening to allow use of 35 tall tires with minimum lift height. The design of this 4 System is a new style of suspension that delivers improved performance with fewer parts, and comes with an affordable price. The system includes replacement upper control with a .120 wall DOM arm with heavy duty extended range ball joints that provide additional strength to the front suspension. Heavy duty extended length steering knuckles are included to provide proper functionality of the factory ESC (Electronic Stability Control) with 35 tall tires. The knuckles retain the stock track width keeping the tires under the front fenders. The front differential is relocated to keep CV angles proper during the full range of travel. Front bump stop extensions and brake hose relocation brackets complete the front suspension. Rear lift comes from a 1 lift block and u-bolt system to level the stance of the vehicle. The 4 System is available with a spacer system to retain the factory Coilover shocks and rear Performance shocks. Ball Joint Control Arm Lift System; 3.5 in. Lift;

• Simplified Design With Fast Install
• Steering Knuckles Retain Proper ESC
• No Loss Of Ground Clearance
• No Driveshaft Modification
• 2 to 3 Hours Installation
• No Drilling Required
• No Welding Required
• No Cutting Required

The Fabtech FTS21276 4 System is designed specifically for the 2020 and 2021 GMC Sierra 2500 HD and 3500 HD models, leveraging the large wheelwell opening to accommodate 35-inch tall tires with minimal lift. This innovative suspension system combines advanced engineering with simplicity, delivering enhanced performance while maintaining factory-like handling and appearance. Crafted with a new style of suspension, it features fewer parts for easier installation and reliable operation, making it an ideal upgrade for enthusiasts seeking both capability and value.
Built with durability in mind, the system includes replacement upper control arms made from .120 wall DOM tubing, fitted with heavy-duty extended range ball joints that add strength to the front suspension. Heavy-duty extended steering knuckles are included, ensuring proper functionality of the factory Electronic Stability Control (ESC) with larger tires while preserving the stock track width, allowing the tires to stay under the front fenders. The front differential is relocated to maintain correct CV angles throughout the suspension's full range of travel, improving ride quality and component longevity. Additional features such as front bump stop extensions and brake hose relocation brackets complete the front suspension overhaul.
The rear lift is achieved with a 1-inch lift block and u-bolt system, providing a level stance to match the front. The system offers an optional spacer to retain factory coilover shocks and rear performance shocks, ensuring a smooth ride and optimal handling. Installation typically takes 2 to 3 hours and requires no drilling, welding, or cutting, making it accessible for most DIY enthusiasts. The design also ensures no loss of ground clearance, and the system is engineered to retain factory steering and suspension geometry, maintaining the vehicle’s drivability and safety.
Ideal for off-road adventures and aggressive looks, this lift system enhances your GMC Sierra’s capabilities without compromising factory features or safety standards. Whether you're upgrading for style, performance, or both, the Fabtech 3.5-inch lift provides a robust solution that is both affordable and easy to install, making it a top choice for serious truck enthusiasts.

Features:

• Simplified design with fast installation, typically completed in 2 to 3 hours

• Heavy-duty extended range ball joints for increased front suspension strength

• Heavy-duty extended steering knuckles maintain proper ESC function with 35-inch tires

• Relocation of front differential to preserve CV angles and full suspension travel

• Includes front bump stop extensions and brake hose relocation brackets for proper clearance

• Rear lift provided by a 1-inch lift block and u-bolt system for a level stance

• Optional spacer system to retain factory coilover shocks and rear performance shocks

• No drilling, welding, or cutting required during installation

• Maintains factory ground clearance and steering geometry for safe, reliable handling

Fitment:
2020 GMC Sierra 2500 HD AT4
2020 GMC Sierra 2500 HD Base
2020 GMC Sierra 2500 HD Denali
2020 GMC Sierra 2500 HD SLE
2020 GMC Sierra 2500 HD SLT
2020 GMC Sierra 3500 HD AT4
2020 GMC Sierra 3500 HD Base
2020 GMC Sierra 3500 HD Denali
2020 GMC Sierra 3500 HD SLE
2020 GMC Sierra 3500 HD SLT
2021 GMC Sierra 2500 HD AT4
2021 GMC Sierra 2500 HD Base
2021 GMC Sierra 2500 HD Denali
2021 GMC Sierra 2500 HD SLE
2021 GMC Sierra 2500 HD SLT
2021 GMC Sierra 3500 HD AT4
2021 GMC Sierra 3500 HD Base
2021 GMC Sierra 3500 HD Denali
2021 GMC Sierra 3500 HD SLE
2021 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Clearance Item: t
Regular Stock: false
Units Per Sku: 1