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Unity 251020 rear shock absorber cylinder with piston rod and mounting hardware

Unity

Unity 251020 Rear Shock Absorber 2002-2009

SKU CH-036V-Q6P82

Replacement rear shock absorber with twin-tube gas-charged design fits 2002-2009 Chevrolet Trailblazer, GMC Envoy and related models

  • Fits 2002-2009 Chevrolet Trailblazer and GMC Envoy models
  • Twin-tube gas-charged design replaces OE shocks directly
  • Unity brand with 50 years aftermarket suspension experience
  • Built for trouble-free installation and long-lasting reliability
  • Direct replacement for failing original equipment shocks

Rear Shock Absorber 251020

The Unity 251020 rear shock absorber is a twin-tube gas-charged unit built as a direct replacement for original-equipment shocks. It fits 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy and several related SUVs from Buick, Isuzu, Oldsmobile and Saab. The part targets owners and mechanics restoring ride control on these platforms.

Thermals Noise Power Draw

Twin-tube gas-charged construction helps maintain consistent damping as the shock cycles through compression and rebound. The design resists fade during repeated use on rough surfaces. No power supply or electrical connection is required for operation.

Build Connectors Mounting

Unity manufactures the unit to match factory mounting points for a trouble-free installation. The brand draws on over 50 years of aftermarket suspension experience to deliver long-lasting reliability. The shock is sold individually and ships directly from the manufacturer.

Highlights

  • Fits 2002-2009 Chevrolet Trailblazer and GMC Envoy models
  • Twin-tube gas-charged design replaces OE shocks directly
  • Unity brand with 50 years aftermarket suspension experience
  • Built for trouble-free installation and long-lasting reliability
  • Direct replacement for failing original equipment shocks

Specifications

BrandUNITY

Questions about this item

How is the Unity 251020 rear shock absorber installed, and what step do people often miss?

Install the twin tube gas charged shock as a direct OE replacement; the step people miss is torquing the upper and lower mount bolts to the vehicle manufacturer's specification after the suspension settles at ride height.

What maintenance or replacement will the Unity 251020 shock absorber need later?

The gas charged twin tube design is sealed and requires no routine maintenance; replace the unit when damping performance fades, fluid leaks appear, or mounting bushings wear out.

What limit shows up first on the Unity 251020 under sustained use?

Under sustained use the twin tube gas charge can overheat first, causing temporary fade until the shock cools and the gas pressure stabilises again.

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