Fabtech 20-21 GM K2500HD 3.5-inch Ball Joint Upper Control Arm Lift Kit with Stealth Design

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; Stealth; For PN[FTS21276/FTS6341/FTS6019];

• 2.25? OD x .250? wall DOM bushing barrels
• Additional 1 degree of caster built in
• Simplified Design With Fast Install
• Steering Knuckles Retain Proper ESC
• Heavy duty forged torsion bar keys
• Tubular Steel Upper Control Arms
• High travel oversized ball joint
• 1.5? OD x .120? wall DOM tubing
• No Loss Of Ground Clearance
• No Driveshaft Modification
• 2 to 3 Hours Installation
• No Drilling Required
• No Welding Required
• No Cutting Required

The Fabtech K1157M 3.5-inch ball joint upper control arm lift kit is engineered to optimize performance and aesthetics for 2020 and 2021 GMC Sierra 2500 HD and 3500 HD models, as well as Chevrolet Silverado 2500 HD trucks. This innovative 4-System suspension upgrade leverages the truck's large wheelwell opening to accommodate 35-inch tall tires with minimal lift, enhancing off-road capability while maintaining a factory-like appearance. The system features a simplified design with fewer parts, ensuring quick and straightforward installation without the need for drilling, welding, or cutting, typically completed within 2 to 3 hours. The kit includes high-quality tubular steel upper control arms with 1.5-inch OD x .120-inch wall DOM tubing, providing increased strength and durability. Heavy-duty forged torsion bar keys and a heavy-duty extended-length steering knuckle preserve the factory Electronic Stability Control (ESC), ensuring proper functionality even with larger tires. The front differential relocation maintains correct CV angles during full suspension travel, while bump stop extensions and brake hose relocation brackets ensure reliable performance. Rear lift is achieved through a 1-inch block and u-bolt system, leveling the truck's stance for a balanced look. The kit also offers an optional spacer system to retain factory coilover shocks and performance shocks for a customizable ride quality. With built-in caster adjustment, high-travel oversized ball joints, and no ground clearance loss, this system delivers a blend of off-road capability and on-road comfort. Designed for a perfect fit on GMC Sierra 2500/3500 HD models, this kit enhances your truck’s stance and capability without compromising factory features or requiring extensive modifications.

Features:

• 3.5-inch lift height designed for large wheelwell clearance and 35-inch tires

• Heavy-duty tubular steel upper control arms with .120-inch DOM tubing for enhanced strength

• Heavy-duty forged torsion bar keys for reliable lift and durability

• Steering knuckles retain proper ESC functionality with larger tires

• Front differential relocation to maintain proper CV angles during suspension travel

• Bump stop extensions and brake hose relocation brackets included for complete front suspension upgrade

• Rear lift achieved via a 1-inch block and u-bolt system for vehicle leveling

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

• Simplified installation with no drilling, welding, or cutting required, typically completed within 2-3 hours

• Built-in caster adjustment for improved steering response and stability

Fitment:
2020 Chevrolet Silverado 2500 HD High Country
2020 Chevrolet Silverado 2500 HD LT
2020 Chevrolet Silverado 2500 HD LTZ
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 Base
2020 GMC Sierra 3500 HD Denali
2020 GMC Sierra 3500 HD SLE
2020 GMC Sierra 3500 HD SLT
2021 Chevrolet Silverado 2500 HD High Country
2021 Chevrolet Silverado 2500 HD LT
2021 Chevrolet Silverado 2500 HD LTZ
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 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: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Clearance Item: t
Regular Stock: false
Units Per Sku: 1