Extang Solid Fold 2.0 ToolBox Tri-Fold Tonneau Cover for RAM 2500HD w/out RAMBox

The Solid Fold 2.0 ToolBox is designed to accommodate most standard 460-510mm (18-20 inch) toolboxes. The patented L-Channel design bridges the gap between the toolbox and the tonneau panels, with an adjustable sealing system for a proper fit and rain drainage. Non-standard or unusually deep toolboxes outside this range may not be compatible.

The L-Channel runs along the inner edge of the cover where it meets the toolbox, creating a bridged seal between the toolbox and the tonneau panels. Any rain that enters that gap is channelled toward drainage points rather than pooling on your gear. The T-Handle clamp secures the L-Channel in place, making it straightforward to remove and reinstall the cover when toolbox access is needed.

The cover folds forward in thirds, clearing the toolbox area and giving access to the rest of the tray. For toolbox lid access specifically, the clearance depends on your toolbox's lid height when open. The T-Handle clamp allows for quick cover removal if full clearance is needed.

No. This listing is specifically designed for the RAM 2500HD without Rambox. The Rambox integrated storage compartments alter the bed rail profile, and using an incompatible cover will result in poor sealing and fitment.

The 1-inch thick EnduraShield panels are made from automotive-grade polymer and are designed to resist dents, UV damage, and vibration better than traditional aluminium panels. The powder-coated aluminium frames and EZ-Lock clamps hold the cover securely while driving. Checking clamp tension periodically on long corrugated runs is a practical habit regardless of cover type.

The rigid EnduraShield polymer panels and robust EZ-Lock clamps make the Solid Fold 2.0 ToolBox significantly harder to breach than a soft or roll-up cover. That said, no tonneau cover is a replacement for a quality locking toolbox or a locked canopy. When paired with a locking tailgate and a secure toolbox, this setup provides a strong deterrent against opportunistic theft.

The Solid Fold 2.0 ToolBox is covered by a 3-year manufacturer warranty.

No. The cover attaches to the bed flanges using the clamping rail system without drilling or permanent modification. The T-Handle clamp and L-Channel system then bridges to the toolbox. All hardware is included.