So I decided to deplay the x-mas/birthday present for my dad since he already had studded snow tires on for the winter.

Will now that it is getting warmer I am going to purchase the Goodyear DuraTracs for his truck in the next week or so.

So my question is what tire sizes will fit or recommend for his wheels.

He has 3 sets of wheels.

1st set of wheels he has are these:

and the other 2 set of wheels are these:

I notice there are 2 of these wheels. I dont know if he has 15x7 or 15x6 but he has 2 sets of these wheels.

So would the 235/75/15 or 31/10.5.15 DuraTracs fit which wheel or is best recommend?