You can actually put a 285/75-16 on them with the TT and Shackle lift. Unfortunately, only one tire on the market in this size is approved for this rim width though which is 7 inches..
I have them on mine (since 2001). They are Mickey Thompson Baja Radial MTX tires. Approved for 7 inch...
I have been running Mickey Thompson Baja Radials on the stock rims in 285/75-R16 for almost 4 years on my 2001 Trac.
This Mickey is compatable with 7 inch rims.
See my profile for pics.