My daughter came over today in her 2004 Saturn vue and before she left asked me to check her tire pressure. I immediately noticed she was in need of 4 new tires and asked her if instead of buying new tires if she wouldn't mind if I put my leftover 17" mustang wheels and tires on her car to save her some money. Her tires were 235/60/17 and the mustang tires were 215/65/17. I put the two on the drivers side with no issues, same bolt pattern and no clearance issues. But as soon as I pulled it out of the garage to turn around to do the other side the tires started making a squeaking sound, not sure if that's the best way to describe it, almost sounded like when you have low tire pressure. I drove it around the block and it didn't make any noise until you turned. So I checked the tire pressure and they were at 30, her vue also recommended 30 for her tires even though they are different sizes. I even put them up to 35 and it still made the same noise. I took them off because I didn't know if the noise they were making when turning was safe or not. Are the tires too thin? People put different sizes on all the time, although it's usually to a bigger size. I haven't bought her new tires yet and was hoping someone with tire knowledge could help me out. She's 19 so she doesn't care if they make noise as long as they are safe to use. I also agree with her on that point. If you have any thoughts please let me know.