Best Swing Tool Boxes for Trucks: Top Undercover SwingCase Picks for 2026 and Beyond
Truck bed storage is essential for keeping your gear secure and organized on the go. SwingCase tool boxes install on the inside of your truck bed rail, opening upward for quick access while preserving bed space. The UnderCover SwingCase line is designed to fit a wide range of pickups with compatibility across most tonneau covers. Below are five highly compatible options, featuring different truck models and sides, to help you choose the best fit for your rig.
Summary of selected products:
- UnderCover SwingCase SC203P – Ford F-150 Passenger Side (2015-2025) — 3-inch clearance, compatible with soft to rolling tonneau covers
- UnderCover SwingCase SC302D – Dodge Ram 1500/2500 Drivers Side (2019-2025) — New Body Style, 3-inch clearance, tonneau compatible
- UnderCover SwingCase SC100D – Silverado/Sierra 2500/3500HD Drivers Side (2007-2019) — Legacy body style notes
- UnderCover SwingCase SC205P – Ford F-250/350 Super Duty Passenger Side (2017-2025) — 3-inch clearance, tonneau compatible
- UnderCover SwingCase SC104P – Silverado/Sierra 1500 Passenger Side (2019-2025) — 3-inch clearance, not for certain bed configurations
UnderCover SwingCase SC203P Ford F-150 Passenger Side

The SC203P model fits 2015-2025 Ford F-150 on the passenger side and is built in the USA with global materials. It maintains a 3-inch clearance from the truck bed and is designed to work with virtually all tonneau covers, including soft, hard, folding, and rolling. This enclosure offers secure, accessible storage without intruding on cargo space, making it a practical option for everyday use or weekend adventures.
UnderCover SwingCase SC302D Dodge Ram 1500/2500 Driver Side

Designed for 2019-2025 Dodge Ram 1500/2500 on the driver’s side, this SwingCase is made in the USA with global materials. It provides 3 inches of bed clearance and remains compatible with most tonneau cover types. The SC302D is a solid choice for truck owners who need durable, external-access storage that stays out of the way when you load or unload other gear.
UnderCover SwingCase SC100D Silverado/Sierra 2500/3500HD Driver Side

SC100D fits 2007-2019 Silverado/Sierra 2500/3500HD on the driver’s side. It is manufactured in the USA with global materials and is TRUCK BED COVER COMPATIBLE. Note that buyers should verify whether they have the New Body Style or Legacy (Chevy) / Limited (GMC) before purchase, as compatibility can vary within model years. The SwingCase maintains a 3-inch clearance and works with most tonneau covers.
UnderCover SwingCase SC205P Ford F-250/350 Super Duty Passenger Side

The SC205P is designed for 2017-2025 Ford F-250/350 Super Duty on the passenger side. It shares the same 3-inch clearance and tonneau-compatible design, offering secure storage while allowing easy access from inside the bed. Like other SwingCases, it is built to withstand routine use and is crafted with materials sourced in the USA for consistent quality and fitment.
UnderCover SwingCase SC104P Silverado/Sierra 1500 Passenger Side

SC104P is tailored for 2019-2025 Silverado/Sierra 1500 on the passenger side, with a 3-inch clearance and broad compatibility with most tonneau covers. Prospective buyers should note that some configurations (like certain bed designs) may require verification for exact fitment. The unit is built to endure daily use with a focus on secure, accessible storage.
Buying Guide
- Fitment and compatibility: Confirm the exact year, model, and bed configuration of your truck, especially with body style changes across generations. Some SwingCases require matching body styles to ensure proper clearance and operation with tonneau covers.
- Bed clearance: All highlighted models maintain about 3 inches of clearance from the truck bed, a critical factor to avoid interference with tailgates, bed rails, or loading accessories.
- Tonneau cover compatibility: Most SwingCase units are designed to work with soft, hard, folding, or rolling tonneau covers. Verify your cover type and model to ensure seamless operation.
- Materials and build quality: Models in this line emphasize USA-made construction with global materials. Look for metal latches, weather seals, and corrosion resistance for long-term durability.
- Access and security: SwingCase provides inside-the-bed storage with a hinged lid that opens upward. Consider how access aligns with your typical loading workflow and whether you need lockable options.
- Warranty and support: Confirm warranty details with the seller. A solid warranty helps cover mounting hardware and finish wear from road exposure.
- Weight and installation: Check the weight of the unit and the required mounting hardware. A proper installation ensures stability during transit and cargo handling.
- Vehicle-specific notes: Some models include special notes about new vs. legacy body styles, or exclusions based on bed features (for example, not fitting certain bed configurations with Carbon Pro or MultiPro tailgates). Always verify on the product page before purchase.
The UnderCover SwingCase line offers a versatile approach to in-bed storage across several popular American pickups. When selecting a model, prioritize exact year and bed configuration to ensure seamless integration with your tonneau cover and bed accessories. The packages listed above provide a snapshot of fitment across Ford, Dodge Ram, and Chevy/GMC trucks, highlighting the balance between accessibility, durability, and compatibility that defines the SwingCase lineup.