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CST 4.5" Stage 4 Suspension System — 19-25 Chevy / GMC 1500 (Trail Boss / AT4)

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CST 4.5" Stage 4 Suspension System — 19-25 Chevy / GMC 1500 (Trail Boss / AT4)

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
  • Plus CST DIRT-Series uniball upper control arms
  • Plus CST DIRT-Series front 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 (20x9, 5" backspacing)
  • Max wheel backspacing: 5"
  • Professional installation and alignment recommended
$2,222.30

Original: $6,349.44

-65%
CST 4.5" Stage 4 Suspension System — 19-25 Chevy / GMC 1500 (Trail Boss / AT4)—

$6,349.44

$2,222.30

Product Information

Shipping & Returns

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
  • Plus CST DIRT-Series uniball upper control arms
  • Plus CST DIRT-Series front 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 (20x9, 5" backspacing)
  • Max wheel backspacing: 5"
  • Professional installation and alignment recommended

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