Universal Shock Box
Premium Flat Shock Box for Semi Trucks
Enhance your truck's appearance with the Flat Shock Box, designed to deliver a clean, streamlined look while helping protect suspension components from road debris and everyday wear.
Built for custom semi truck applications, this fiberglass shock box combines durability, lightweight performance, and professional styling. Whether you're building a show truck or upgrading a working rig, the Flat Shock Box provides a polished finish that complements your truck's overall appearance.
Features
✔ Durable fiberglass construction
✔ Clean flat-profile design
✔ Lightweight yet strong construction
✔ Smooth paint-ready gel coat finish
✔ Designed for custom semi truck builds
✔ Professional appearance and fitment
✔ Made in the USA
Built for Performance and Style
The Flat Shock Box is manufactured from high-quality fiberglass materials to provide long-lasting durability without adding unnecessary weight. Its smooth surface is ready for custom paint, allowing you to match your truck's existing color scheme and create a seamless custom look.
Ideal for owner-operators, custom truck builders, and show truck enthusiasts, this shock box delivers the perfect balance of protection and style.
Important Information
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Ships unfinished and requires painting
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Dry fit before final paint and installation
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Professional installation recommended
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Verify fitment before ordering
Have Questions?
Check out our Bad Ass FAQ and get answers before you buy.
Specifications
| Technical Specifications | |
| Material | 1/4" Fiberglass |
| Coating | Marine Grade Gray Gel Coat - Paint Ready |
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Every semi truck fender we build is made in the USA and backed by a lifetime warranty—so you get parts that don't just look tough, they perform. When you run Bad Ass fiberglass fenders, your truck is ready for whatever the road throws at it.