Mike the simple answer is yes and yes. However you need to provide more information on what you are towing. Tow Rating is not dependent on length but weight and other variables as well. Read through some of the other towing threads on the forum and gather some background information... as you would expect there are some real towing experts on this site.
Above all remember, if you are towing anything which exceeds the max tow rating of your vehicle and you get in an accident, good luck, your insurance will be worthless to you, not to mention the liablilty you will incur if you injure someone in the process.