@ tko9900 My wheel spacing originally was the same as yours.
I upgrade to Sailun 637's ST 235/85 R16. I had about 5/8" between tires. I ran that way for about 2 years without issue.
I eventually installed a Correct Trax kit to raise the rear of my 5'er to create better bed rail clearance.
An added bonus of the kit was that it allowed me to spread my axles further apart. I now have about 2" between tires.
Since I originally purchased my tires (about 3 years ago) Sailun has since come out with a 235/80 R-16. Which was the same size as my and I assume your OEM tires. Your clearances will not change.
Sailun is a fantastic tire, that is equivalent to the well respected and infamous Goodyear G614 but there are almost 1/2 the price.
The Sailuns are 110 PSI G rated. I run my Sailuns at 110 without issue.
My factory rims are rated to handle 110 PSI