Description
4.5″ of lift on high-clearance subframes — built specifically for the factory-lifted Trail Boss and AT4 — for 2019–2025 Chevy Silverado Trail Boss / GMC Sierra AT4 1500 (4WD). Maximum ground clearance with laser-cut fabricated knuckles. Must run 20″ or larger wheels.
What this stage includes
- High-clearance front subframes with diff-drop brackets
- Laser-cut, machined steering knuckles
- Sway-bar drops and ABS drop brackets
- 4″ fabricated offset rear lift blocks with an 11.5″ U-bolt kit
- All hardware
- Reuses your factory Trail Boss / AT4 coilovers
- Plus CST DIRT-Series rear shocks
Why CST
- 4.5″ of lift engineered for the Trail Boss / AT4’s factory ride height
- USA-made high-clearance subframes that protect vital front components
- Laser-cut, machined knuckles for strength and durability
Good to know
- Requires 20″ or larger wheels
- Clears 35″ tires with no trimming, or 37s with minor trimming (20×9, 5″ backspacing)
- Max wheel backspacing: 5″
- Professional installation and alignment recommended
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