chops,
are you that lazy that you cant answer the guy. If everyone uses the "search button" then there would never be new posts as everything has been answered. And with responses like yours you will be discouraging new members.
loved one,
they should fit but you may run into some minor rubbing. If you are going to ;arger tires then you probably like the 4x4 look. With a 4x2 you have inexpensive lift options that could add to your ST that would allow you to fit 33" to 35" and beyond. If I were you I would at least do a TT/shackle lift just to guarantee no rubbing issues with your 31" tires. If you would like to see the lifting potential look up "tonka trac" and you can see what you could have.
Dallas