10 R 15 tires

[curtscat]

So my Jeep has this size tire on it. What size is it really? What size would I replace them with?

 

[derf]

I believe those are roughly equivalent to a 31x10.50R15. Best way to figure it out is with a tape measure.

As for what to replace them with, that depends entirely on what you want out of your tires.