im buying this jeep it has a rear end problem. I was lookin at it and it looks like the two back tires are bent in. The owner says it goes threw tires like crazy. I looked and it just burns the inside of the tires. It just looks like something snapped Idk does anyone have any ideas

if u could send me a pic (Joe, dksob81@hotmail.com) it would help me figure out what is wrong.