.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } The Rhino-Rack Backbone Mounting System for Toyota 4Runner is a vehicle-specific roof mounting solution designed to provide a strong and secure foundation for Rhino-Rack Pioneer Platform systems. Utilizing three mounting bases on each side of the roof, this backbone system enhances load support and allows your 4Runner to safely carry more gear for overlanding, camping, and outdoor adventures. Key Features Custom-fit backbone mounting system for Toyota 4Runner Provides secure mounting base for Rhino-Rack Pioneer Platform systems Connects through 3 mounting bases on each side for enhanced stability Increases roof load-carrying capability for larger cargo setups Heavy-duty construction for long-lasting durability Designed for overlanding, camping, and off-road applications Vehicle-specific fit ensures secure installation Compatible with Rhino-Rack Pioneer roof rack systems Package Includes 1 x Rhino-Rack Backbone Mounting System Mounting Bases and Brackets Installation Hardware Specifications Specification Details Brand Factory Original Product Type Vehicle Roof Rack Mounting System Vehicle Compatibility Toyota 4Runner Mounting Points 3 Bases Per Side Package Dimensions 70.47" L x 6.30" W x 5.12" H Installation Vehicle-Specific Mounting Bases Weight Not specified Warranty 5 Years