We have a 1995 Mallard model 19n (21ft)by Fleetwood, dual axles.It's time to buy new tires. What brand do you like? I just started the online research and finding a lot of mixed reviews.
I looked at Goodyear Endurance in a 15" but they only offer them in load range D and E. If your rims have the PSI capability, you can go up a load range, otherwise stay with what you have. I got a great deal on Maxxis M8008s and put 1500 miles on them in July with no issues.