different size tires 4x4?
 

My tires are going bald one of them more than the rest. i got a 235/75/15 tire from a 1995 blazer for free, The thing i'm worried about is somehow it will mess up my front differential if i use it because its a different size than the rest. the rest of the tires are 235/70/15. will this cause a problem if the 4x4 is not used while the tire is on there? Thanks

you should be fine as long as you dont use 4x4

Alright thanks.

Though it may cause some premature wear on the front end components in the long run. I would get the same size tire on as soon as you can. For just a short time it shouldn't matter, though.