235s or 31x12.5r15 on Stock will it rub?

I'm looking at at good deal for a set of 31x12.5r15.



But I'm not sure if I can put them on my stocker without rubbing.

I did trimmed a lot, and I'm currently on 235s which gives plenty room to flex.



I do go on trails once or twice a month. so I'm not sure if larger tire, less flex performs better than smaller tire, more flex..



Here are some photos of it on 235s