Mountains aren't the issue. What does the Vehicle Certification Label say next to the driver's position? What class hitch does the RV have? I suspect you're asking because you're overweight in one or more area. Also, a 5000 lb trailer should have a 10-15% tongue weight, not 300 lbs as you suggest.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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