Question:
What is the maximum width the crossbar can be for the cargo carrier clamp to properly secure the carrier to the roof? Mine measure out to about 3.5 inches. 2009 Dodge Grand Caravan
asked by: Kris
Expert Reply:
Yakima states that the RocketBox 14 will not fit your 2009 Caravan. I also checked with Thule, and their cargo boxes that use the Quick Grip mounting clamps are not compatible with your Caravan either.
SportRack which is a division of Thule offers a budget-priced selection of roof-mounted cargo boxes that use U-bolts to attach to the crossbars. They will accommodate cross bars up to 4 inches wide. I was told by my contact at Thule that these would work great for you. The Aero XL, part # A90275 and the Explorer, part # A90095 both offer 18 cubic feet of cargo capacity.
I have installation details as well as a product demonstration video for the Explorer. Please click the provided links for more information.
expert reply by: Mike L

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Products Referenced in This Question
DISCONTINUED - SportRack Explorer Cargo Box - Roof Mount - 18 Cubic Feet
Product Summary:
Roof Box
Square Bars
Round Bars
Factory Bars
Polyethylene
18 Cubic Feet
Gray
Product Specs:
54 Inch Long
Manual
Passenger Side Access
DISCONTINUED - SportRack Aero XL Cargo Box - Roof Mount - 18 Cubic Feet
Product Summary:
Roof Box
Square Bars
Round Bars
Factory Bars
ABS Plastic
18 Cubic Feet
Black
Product Specs:
64 Inch Long
Manual
Rear Access
Product Page this Question was Asked From
Yakima RocketBox Pro 14 Rooftop Cargo Box - 14 cu ft - Black
Product Summary:
Roof Box
Square Bars
Round Bars
Aero Bars
Elliptical Bars
Factory Bars
ABS Plastic
14 Cubic Feet
Black
Product Specs:
74 Inch Long
Manual
Dual Side Access
Comparing the Yakima RocketBox Pro 14 Cargo Box with a SportRack Aero XL Cargo Box
Roof mounted Cargo Box Recommendation for a 2007 Jeep Patriot
Yakima RocketBox 14 part # Y07192 Recommendation for 2007 Nissan Xterra
Recommended Roof Mounted Cargo Box for a 2009 Kia Rondo with Round Yakima Roof Rack Bars
Compatibility of Roof Rack Kit with Yakima Rocket Box on 2010 Honda PilotFeatured Help Information
Instructions for A90095
Instructions for Y07192
SportRack Explorer Cargo Box Review - Video