1987 subaru GL sedan different tire usage?
I have a subaru 1987 GL sedan, I can select when to put it in 4wd. it has 185/70r13
tires on it, when i bought the car, it had two 175/70r13 tires in the trunk. Can I
use those in combination with the 185/70s? or is there no reason why those were
in the trunk? what can and cannot be done?