I have 33x12.50-18 toyo MT's on my 04 f150 stock rims and was wondering if anyone has the same setup and has towed heavy loads?....Say a 33' travel trailer which weighs approx 7000 lbs. I know that these tires are pushing the max limit you can mount on a stock rim but i wonder how safe they are?..... It used to squish my stock wranglers even with the weight distribution hitch. Any input would be great... Anybody know what a good air pressure would be also for general running around the city, so i don't run them under/over inflated?? Thx

 

I run my Toyo MTs at 40 lbs for every day driving. The minimum rim size for their tires is listed on their web site. For 33x12.5x18s, they recommend an 8.5 to 11 inch rim and the stock Ford rim is 18x7.5.

I tow a 5000 lb boat with mine without any issues, but I am using an 18x9 after market wheel.

Click on Sizes and Specs:
http://toyotires.com/tire/pattern/open-country-mt

KR-Texas