Upgrading wheels and tires

[82stanggt]

I want to upgrade the tires and wheels on my stock suspension '82 GT.What size tires and wheels can I run on this car without any interference?

 

[AdirondackFox08]

You could run 16s or 17s. I wouldn't go much bigger than 245 or 255 on the rears because of the clearance issues with the wheel well and the quad shocks.