help all terrain tires stock 85 c30 dually

[towstrap]

hi new to the duallys trucks, looking at putting a more aggresive all terrain tire in the rear .was wondering about spacers and tire sizes, band of tires needed for stock rims and stock ride height

 

[Grit dog]

Pretty easy. Measure the gap between your current tires and then subtract the difference from any wider tires you’re considering, to see if they’ll fit without rubbing.
Assuming you understand tire sizing. If you don’t, start there.