Description
A bolt-on leveling system that upgrades the Trail Boss / AT4 to fully adjustable PRO-Series 2.5 coilovers — for 2019–2025 Chevy Silverado Trail Boss / GMC Sierra AT4 1500 (4WD). Levels the stance, adds wheel travel, and keeps the factory load rating and tow capacity.
What’s included
- CST uniball upper control arms
- PRO-Series 2.5 adjustable front coilovers with compression adjusters and reservoir mounting brackets
- PRO-Series 2.5 adjustable piggyback rear shocks with compression adjusters
- Front reservoir mounts and all necessary hardware
Why CST
- On-the-fly compression-adjustable damping front and rear
- Uniball UCAs correct alignment geometry and add durability over the factory arms
- Retains the O.E. load rating and tow capacity
- Built in the USA as part of CST’s Adventure Series
Good to know
- Increases suspension travel and ground/tire clearance over stock
- Front reservoir mounting is shown in CST’s install photos
- Professional installation and alignment recommended
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