My brother has 295//55/20 wheels right now, and he needs new ones so I’m thinking of getting him some. Is that the only size I can use, or could I put something else on there? I don’t know much about wheels

 

What is he driving?

 

2013 Dodge 1500

 

It looks like stock was 275/60R20's. So, he already has gone a bit larger. If he likes the way it drives with those, stick with that size. If he wants to go larger, may have to take some measurements, and see how much clearance he has left. There are also sites out there on the web that will tell you what hits, and what fits..... but, I have found that they aren't always accurate. They can do ballpark pretty well, but, even in mass-produced trucks, there is some variations.