Can they? Yes. Should you substitute with this size? No. The 215/70 tires will be 1.7" larger, (6.34%) in diameter and your speedometer will read 56.1 at a true 60 mph. You should never go over or under 3% of the OEM size. If you want to go with a 70 series tire then go with a 185/70-15 which is only .04 " larger in diameter. My advice is to stick with the OEM size for overall good handling, stopping, mileage, tread wear, and ride.
Normally. yes.
Yes, you can
no there is too much height difference
Possibly, check they don't rub anywhere while steering.
215 65 r 15 or 205 60 r 15
It is an acceptable substitute, but know that your speedometer will read 58.7 at a true 60 mph.
Yes, they can as long as both are the same on each axle.
NO, rim size is incorrect.
Yes, you can
No, that tire will be too small in diameter and your speedometer will be off 3.375%, which will be about 2 mph at 60 mph. Never install a tire that is over 3% different from the original OEM size.
Yes, it is not a bad swap. Your speedometer will show 60.6 mph at a true 60 mph.
Yes, they can