Yes, they can
Maybe, if enough clearance on full steering lock.
235 70r15
No, this is a poor swap as this tire is way too small a diameter. Your handling, ride, fuel mileage, and power will suffer. Your speedometer will also read 62.7 at a true 60 mph. If you wish to go to a 60 series tire then install 235/60-15 which is a very good substitute.
it will change your speedometer's accuracy It also depends on what vehicle, not all vehicles will have adequate clearances.
225/75R15's are stock Alternatively 235/75 and 235/70R15 will work.
"depends on your rim/wheel sizes. typically 215-235 width and 35-55 height. Tirerack.com could help you as well." Stock P215/60R15 i do believe.
Yes, as long as you have clearance for the front wheels to steer.
Yes you can
Yes, you can
Yes, you can . They must be mounted as a pair.
No, this is not a good swap as the 215/70-15 is over 3% too small in overall diameter. If you wish to go with 15" wheels then install 235/70-15 tires which will be only 0.36% different than the OEM size.
can you use 235/70/R16 tires on a chevy silverado truck