Largest wheel/tire combo on '08 5-lug 2.7l w/leveling kit?

Hello! This is my first post.

I just swapped my stock tires for some 235/75r15 winter tires (as we already have snow in Minnesota..). Love the look of the bigger tires. When spring approaches I want to get a new set of wheels and tires for my truck and keep the winter tires mounted on the stock wheels.

I installed a 2.75" front and 1.75" rear leveling kit on my truck. When I search around on tacomaworld, talk to a mechanic, or google I find many different answers, and I was hoping the experts here could help me out-- what is the largest tire/wheel combo I could fit without any rubbing or cutting required? What do you all recommend?

Thank you greatly,
William

 

Is bumping a thing here? If it's not ok let me know! Otherwise, bump!