Anyone know the standard offset for trailers? I need to order new wheels for my tandem axle and have found some I like that have a 3.5" or 3.75 offset.<br /><br />Also, standard trailer rims seem to have a capacity of 1860lbs in 14" sizes. The rims I am looking at have a 1600lb rating each. The entire load, trailer, boat and all shouldn't be over 4500lbs over 2 axles. Anonse see any possible problems?