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Rhino-Rack Backbone Mounting System – RJLB1 for Jeep Wrangler JL Unlimited (2018+)

$599.99

Take your Jeep Wrangler JL Unlimited's roof rack capability to the next level with the Rhino-Rack Backbone Mounting System (RJLB1). Engineered specifically for the 2018+ Jeep Wrangler JL 4-Door, the Backbone system reinforces the vehicle's hardtop by connecting directly to the interior structure, creating a strong and secure mounting foundation for Rhino-Rack Pioneer Platforms and roof rack systems.

Designed for serious overlanders and adventure seekers, the Backbone system distributes roof loads more effectively, allowing you to safely carry rooftop tents, awnings, recovery gear, and other expedition equipment with confidence. Its concealed interior support structure maintains a clean factory appearance while dramatically increasing roof rack carrying capacity.

Rhino-Rack Backbone Mounting System – RJLB1 for Jeep Wrangler JL Unlimited (2018+) $599.99

Jeep Wrangler JL Unlimited (4-Door) 2018-Present
Hard Top Models Only

Designed specifically for Jeep Wrangler JL Unlimited 4-Door models
Reinforces the hardtop using internal support frames
Creates a secure mounting foundation for Rhino-Rack Pioneer Platforms
Supports heavier overlanding loads compared to factory mounting points alone
Compatible with 2-bar and 3-bar Rhino-Rack roof rack systems
Ideal for rooftop tents, awnings, recovery boards, and cargo storage
Includes mounting plates and installation hardware
Concealed interior structure maintains a clean exterior appearance
Easy installation
Backed by Rhino-Rack's Limited 5-Year Warranty

Manufacturer: Rhino-Rack
Part Number: RJLB1
Compatibility: Jeep Wrangler JL Unlimited 4-Door (2018+)
Application: Hard Top Vehicles
Load Rating: Up to 264 lbs (120 kg) dynamic load capacity*
Material: Heavy-Duty Steel Construction
Finish: Black Powder Coat

*Always follow Rhino-Rack and vehicle manufacturer load ratings and installation guidelines.

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.