Would it be ok to put 185/60/14 inch tires on my 90 legacy? They are used but all have equal ware.Is there any problems except maybe speedometer being off a little?

sounds okay to me.

no issues. be nice if the speed rating of the tires was close to stock, but that's not a huge concern either. type in "tire size calculator" on the internet if you want to see the difference in speed reading from your stock size. if you drive aggressively and push the limits be prepared for minor differences, changes in stock tire sizes can and will affect handling.

you should be perfectly fine.

no issues. be nice if the speed rating of the tires was close to stock, but that's not a huge concern either. type in "tire size calculator" on the internet if you want to see the difference in speed reading from your stock size. if you drive aggressively and push the limits be prepared for minor differences, changes in stock tire sizes can and will affect handling.

 

Here's that like... don't buy tires without it!!

 

http://www.miata.net/garage/tirecalcold.html

Even if the naked eye shows the same amount of wear I would still measure them. Tires that are all the same size and even the same manufacturer can deviate beyong the safe zone of what is needed on the AWD. My mechaninc showed me this when I was having some binding problems.