will 205/65 R15 fit on 87 4runner?

[DacronDan]

Hi... First I admit I am a complete idiot about tech stuff so forgive me if this sounds like a dumb Q (but at least I own a 4runner!)...

I have 235/75/R15s on my rig right now... I saw a set of Winter Tires forsale new/used size 205/65 R15. Would these fit on my 87 4runner?

There are only 4... so would there be a problem with a 235/75/R15 spare (if these other tires will fit...will I need a new spare also?).

Thanks