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2011-2025 Duramax Rear 2.5 HTO Performance Series Single Shock 0-1" (KRS4009)

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2011-2025 Duramax Rear 2.5 HTO Performance Series Single Shock 0-1" (KRS4009)

Description

Fits

Year Make Model
2011-2025 Chevrolet/GMC 2500HD/3500HD

Fox direct replacement shocks deliver race-winning performance in a simple, bolt-on package. These Performance Series 2.5 shocks feature FOX's innovative Hydraulic Top Out (HTO) technology, providing position-sensitive rebound damping control. By utilizing a secondary shim stack to slow down shock shaft speed, HTO significantly reduces harsh top-outs and increases overall ride comfort. This is particularly beneficial for heavy-duty trucks equipped with heavier, more aggressive tires or those lifted above OEM specifications.

*Sold Individually

Part Number: KRS4009

Features
  • Hydraulic Top Out provides superior rebound damping
  • Prevents harsh suspension "clunk" at full extension
  • Increased oil capacity reduces heat fade during heavy towing or off-road use
  • Engineered by Fox to fit 2011+ GM HD mounting locations without modification
  • Designed to maximize suspension travel and control on and off the pavement
  • Withstands the demands of the Chevrolet and GMC 2500HD/3500HD chassis

Shock Specs:

  • Collapsed (in): 17.34"
  • Extended (in): 26.02"
Includes
  • 1 x Rear Fox 2.5 HTO Performance Series Shock
Notes
  • Sold Individually.
  • Designed for rear axle fitment on stock to slightly lifted applications.
$88.81

Original: $253.75

-65%
2011-2025 Duramax Rear 2.5 HTO Performance Series Single Shock 0-1" (KRS4009)

$253.75

$88.81

Product Information

Shipping & Returns

Description

Description

Fits

Year Make Model
2011-2025 Chevrolet/GMC 2500HD/3500HD

Fox direct replacement shocks deliver race-winning performance in a simple, bolt-on package. These Performance Series 2.5 shocks feature FOX's innovative Hydraulic Top Out (HTO) technology, providing position-sensitive rebound damping control. By utilizing a secondary shim stack to slow down shock shaft speed, HTO significantly reduces harsh top-outs and increases overall ride comfort. This is particularly beneficial for heavy-duty trucks equipped with heavier, more aggressive tires or those lifted above OEM specifications.

*Sold Individually

Part Number: KRS4009

Features
  • Hydraulic Top Out provides superior rebound damping
  • Prevents harsh suspension "clunk" at full extension
  • Increased oil capacity reduces heat fade during heavy towing or off-road use
  • Engineered by Fox to fit 2011+ GM HD mounting locations without modification
  • Designed to maximize suspension travel and control on and off the pavement
  • Withstands the demands of the Chevrolet and GMC 2500HD/3500HD chassis

Shock Specs:

  • Collapsed (in): 17.34"
  • Extended (in): 26.02"
Includes
  • 1 x Rear Fox 2.5 HTO Performance Series Shock
Notes
  • Sold Individually.
  • Designed for rear axle fitment on stock to slightly lifted applications.