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Rhino-Rack RCSB1 Backbone Mounting System – Suburban/Yukon XL/Escalade ESV

$639.99

Designed for selected long-wheelbase GM SUVs, the RCSB1 Backbone provides four support bases per side for mounting a compatible Rhino-Rack Pioneer platform, tray, or Elevation system. Its extended 81.1-inch package length reflects the larger roof area found on Suburban, Yukon XL, and Escalade ESV applications.

The system creates a clean structural foundation for family travel, expedition storage, and large rooftop loads. Exact vehicle generation and roof configuration must be confirmed because fitment years vary; the platform is sold separately.

Rhino-Rack RCSB1 Backbone Mounting System – Suburban/Yukon XL/Escalade ESV $639.99

Chevrolet Suburban / GMC Yukon XL / Cadillac Escalade ESV applications — exact model years vary; verify Rhino-Rack fitment before sale

Vehicle-specific support system for selected Suburban, Yukon XL and Escalade ESV models
Four bases per side distribute support across the long SUV roof
Compatible with approved Pioneer Platform, Tray and Elevation systems
Extended structure is proportioned for long-wheelbase GM applications
Approximate package dimensions are 81.10 x 7.09 x 4.72 inches
Low-profile layout supports large touring and expedition rack builds
Exact model-year fitment must be verified before purchase
Cargo platform is not included; 5-year Rhino-Rack warranty applies

Brand: Rhino-Rack
Part Number: RCSB1
Product Type: Vehicle-specific Backbone mounting system
Vehicle Fitment: Chevrolet Suburban / GMC Yukon XL / Cadillac Escalade ESV applications — exact model years vary; verify Rhino-Rack fitment before sale
Mounting Status: Supporting mounting component
Application: For compatible Pioneer platform builds
Roof connection: 4 bases per side
Package size: 81.10 x 7.09 x 4.72 in
Compatible systems: Pioneer Platform / Tray / Elevation
Warranty: 5 years

Shipping & Delivery

Shipping costs vary by product, size, weight, and delivery location and are calculated at checkout.

Most orders process within 1–3 business days. Estimated delivery after shipment is typically:

  • Standard shipments: 3–7 business days
  • Large or freight shipments: 5–12 business days

Oversized products such as rooftop tents, bumpers, roof racks, and storage systems may ship via freight carrier. Freight deliveries may require an appointment, and curbside delivery may be standard.

Tracking information will be provided when available. Multi-item orders may ship separately from different warehouses.

Please inspect freight deliveries for visible damage before signing whenever possible and report damage to us within 48 hours of delivery.

For complete details, please see our Shipping Policy.

Returns & Exchanges

Most eligible products may be returned within 30 days of delivery.

To qualify for a return, products generally must be:

  • Unused and uninstalled
  • In new, resalable condition
  • In the original packaging
  • Complete with all original parts, hardware, accessories, and documentation
  • Approved for return by Overland Wanderers before being shipped back

Customers are generally responsible for return shipping costs unless the product arrived damaged, defective, or incorrect. Original shipping charges are generally non-refundable.

Some products may be non-returnable or subject to restocking fees, including certain special-order, custom, made-to-order, final-sale, or manufacturer-restricted products.

Exchanges: We generally handle exchanges as a return followed by a new order. This helps ensure the replacement product is available, correctly priced, and compatible with your vehicle. Contact us before returning your item and we'll help you determine the best next step.

If your order arrives damaged, defective, or incorrect, please contact us within 48 hours of delivery and keep all original packaging and shipping materials.

To start a return or exchange, contact us at info@overlandwanderers.com before sending anything back.

For complete terms and exclusions, please see our Return & Refund Policy.