A general guess for added stuff we carry is about 1000-1500# above a dry weight.
It would depend at what point the particular TT mfg., weighs its trailer to get its dry weight. Some mfg.'s post a low weight to make potential buyers think they can tow it with smaller vehicles. That's why most people don't put a lot of trust in dry weights.
You will know you are towing a trailer of substantial size using a 5.4 and 3.73 gears. You are going to be able to get the job done but you will know it's there, especially go up hills. Having the right hitch of proper size and 'adjusted correctly' will make it ride best. If you do not have a trans temp gauge, i would install one . Heat will kill your trans.
