First time with the camper on the dually...amazed so far.

Regarding air pressure: there are charts from the manufacturers suggesting pressures for loads. However there are really two questions: what is best for tire longevity, and what is best for handling feel. The answers to those questions may not match. According to the charts I should be fine with 55 lbs in the rears, but the handling is much better at 75. So I run 75 with the camper in.