What is the largest tire that will fit on a 97 Toyota 4Runner?

The largest tire size that typically fits a 1997 Toyota 4Runner without modifications is around 31 inches in diameter. This generally corresponds to a 31x10.5R15 tire, but it can vary depending on the vehicle's suspension setup and wheel width. For larger tires, such as 32 inches or more, modifications like a lift kit or trimming may be necessary to prevent rubbing. Always confirm fitment with the specific wheel and tire combination you plan to use.