The newer Axis/Vegas units have an 8,000 lb hitch (ones built after 10/2014). Even then, though, you have to take into account the GVWR, and GCWR values (e.g. the hitch won't be the limiting factor anymore).
For all of the Axis/Vegas models the GVWR is 12,500 and the GCWR is 18,500. This leaves only a maximum of 6,000lbs (2,000 lbs less than the hitch is rated for).
A golf cart will weigh in around 1,000 lbs (
http://en.wikipedia.org/wiki/Golf_cart) which would be pushing it for the tow weight.
Our 24.1 weighed in at 11,400 lbs when loaded with us on board which gives us some room on the tongue weight but our unit is an older model with the 5,000 lb hitch. We tow my wife's Escape (~3600 lbs) with the Acme Dolly (380 lbs) adding in another 1000 lbs would bring us pretty close to the hitches 5,000lb max weight. A bit too close for my comfort--a newer unit should have an extra 1,000 lbs to play with; not sure I would want to though.
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