Originally Posted by AntiochCali

I wanted a 17" full size spare, but it just doesn't fit in my rear space (wagon). I am very unhappy that a full size spare doesn't fit but it doesn't. I keep meaning to try to fit the older steel wheels from older Impreza in there...that might fit (?).

The small steel spare works fine - I know - but it won't clear some of the big brake kits. What you need to do if you get a flat on a front tire, is move a rear tire to the front and put the steelie on the rear.

You might have a misconception but generally to keep the speedomoter working, the outter tire diameter needs to be the same no matter if you are running 16", 17", 18", 19" or some other size wheel, if you don't keep the outter diameter the same you'll have to do something about the speedomoter and thus the odometer.

Good Luck.