tire question

hey all,
i recently found a craigslist post for a used set of km2s with oem rims for 300 bucks!! the problem is three of the rims are 305/70 while the fourth is 285/75. i have done a little bit of research and it seems to me that the main difference would be a slight difference in the width of the fourth tire.

should there be any concerns with having one different sized tire? any help is appreciated. thanks

 

There would be slight differences in sidewall stiffness, cornering grip, etc. The odd 285 tire may well have a different tread depth. Should be OK if you run the 285 tire in the rear.

To stuff a 305 tire, you know you will be trimming a lot from the fender flares, right?

 

i expect i will be doing some trimming haha. and i was thinking the same about the tire in the rear. thanks for the help!