Fabtech 2019 GM K1500 Trail Boss/AT4 4WD 3.5in Uniball UCA System w/o Spacer - Component Box

When you're looking to lift your 2019-2021 Chevrolet Silverado 1500 or GMC Sierra 1500, especially models like the Trail Boss or AT4 with 4WD, this Fabtech Uniball Upper Control Arm (UCA) system is a solid choice. This component box is specifically designed to work with Fabtech's K1129DL/K1130DL lift kits, providing a 3.5-inch lift without requiring a separate shock spacer. It's a key part of achieving the right suspension geometry after lifting your truck, helping to correct alignment angles and allow for proper wheel travel.

Fabtech has been designing aftermarket suspensions for over 20 years, and this UCA system reflects that experience. It features uniball joints, which offer a greater range of motion compared to standard ball joints. This improved articulation is beneficial for off-road driving, allowing your suspension to flex more effectively over uneven terrain. The arms themselves are built to handle the stresses of lifted applications, ensuring reliable performance. This system is intended to be used with specific Fabtech lift kits, so make sure it aligns with the rest of your suspension setup.

This particular component box contains the Uniball UCA system designed for a 3.5-inch lift. It's important to note that this system does not include a shock spacer, as it's designed to integrate directly with compatible Fabtech lift kits. If you're building a lifted Silverado or Sierra, this UCA system is a crucial component for ensuring proper suspension function and alignment.