Thule 21603 TracRac SR Base Rail Kit for Truck Racks

The Thule 21603 TracRac SR Base Rail provides a custom-fit mounting foundation for Thule overhead truck rack systems. This essential component enables smooth sliding and easy adjustability for your cargo management setup, creating a secure platform for transporting ladders, lumber, kayaks, and other long items.

Key Features:

• Custom-fit base rail design ensures proper fit and smooth operation
• Quick installation without drilling into truck bed rails
• Allows full sliding and positioning adjustability for mounted racks
• Durable construction for long-lasting performance
• Compatible with Thule TracRac SR Overhead Rack and Thule Xsporter Pro Shift Overhead Rack

Important Note: This base rail system requires a separately-sold Thule TracRac SR Overhead Rack or Thule Xsporter Pro Shift Overhead Rack to function. The base rails serve as the mounting foundation, while the overhead rack provides the actual cargo-carrying capability.

Ideal for truck owners seeking a professional-grade rack system that won't damage their vehicle's finish while providing maximum versatility for hauling oversized cargo.