Hi Guys , need your opinion on some new rubber,

currently I have 305/50/20 toyo open country that need to be replaced. on Ultra Goliath. (9 inch wide rims i believe)(this is what was what was on truck when purchased). That rub on sharp turns

I do not need or want this big of tires , so I am contiplating getting some 285/55/20's Hankook RF 10's, that are 32.3 in diameter.

Stock 245/75/16 are 30.47 " in diameter, the 285/55/20 's are 32.34 " in diameter.

My question is will these tires still rub , and opinions , ( I do not think that I can go any smaller of a tire an still fit the ultra rims ..
''

Thanks