how much can you tow with a vehicross?

How much can you tow with a tow like this ?

http://www.tonemonday.com/images/hitch/hitch_lg.jpg

Rated at 5K but be careful and change your fluids frequently if you tow heavy loads regularly.

So a trailer with a boat weighing 1000 kilograms towing at 60mph shouldn't be a problem then?;)