GMC C4500 Topkick Shock Absorber - Rear - Bilstein - 46mm Monotube - `04-`09
GMC C4500 Topkick Shock Absorber - Rear - Bilstein - 46mm Monotube - `04-`09

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GMC C4500 Topkick Shock Absorber - Rear - Bilstein - 46mm Monotube - `04-`09 is a rear replacement shock designed for 2004–2009 GMC C4500 Topkick trucks. This Bilstein B6 monotube unit delivers consistent, fade-free damping matched to the vehicle’s stock ride height and hardware.
Built around Bilstein’s 46mm monotube design and velocity-sensitive, digressive piston, this shock reacts to changing road conditions to maintain control and comfort. Tuned specifically for the C4500/C5500 family, it accepts OEM springs and mounting components so installation is straightforward for technicians and experienced enthusiasts. Expect improved handling response and more consistent performance under load compared with worn factory dampers.
Features
- 46mm monotube construction for consistent, fade‑resistant damping
- Velocity-sensitive, digressive piston tuning for changing road inputs
- Application-specific tuning for 2004–2009 GMC C4500 Topkick (rear)
- Designed for use with OEM springs and mounting hardware
- B6 performance level for improved ride quality and handling
This shock is a practical upgrade for enthusiasts who want predictable, repeatable damping without modifying ride height or springs. If you have questions about fitment, installation, or whether this is the right component for your build, call us directly — we’re happy to help. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. 512-982-9393 (TX) | 562-981-6800 (CA)
If you’re considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both Austin and Los Angeles locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov







