Originally Posted by Jimbug
its a 2007 Trail-Bay TB-25RK
Your new best friend is BCRAM. He truly has your best interest at heart. You need AT LEAST a 5.7Hemi with a 3.92 rear in a 1500 series to tow that weight with passengers and gear, and even then, you're fine on towing capacity but getting close to the limit on payload.
Also, if you are purchasing this trailer from a dealer, remember that they only get paid when you buy a trailer. They my not be the best place to ask, "is my truck ok to pull this trailer?" Most dealers will be reputable and honest, but when it's all over, it's up to you to do your homework and don't depend on anyone else. (which is what you are doing, so good job!)
Since your truck is a 2012 (New) changing trucks may not be practical, but for the safety of yourself and your family, you should consider a pop up camper or other type of ultra lite.
This subject has been covered with some good links here: