I had a 35’ 5er and used 16” Michelin XPS Ribs LT tires to replace the OEM Chinese tires. Rated for 3,042 lbs which was fine for my trailer. I also live in Texas and towed in temps as high as 106 at 70 mph for hours at a time. 1st set lasted 9 yrs and replaced due to age even though they only had about 17,000 miles and still looked new. (Michelin says inspect yearly at 5 and replace at 10). Replaced with another set and sold it 4 yrs later. Never a flat or even a low tire. Added 2-4 lbs air at the start of the season and good until next year. But they are not cheap.