I was backing out of a parking spot in 4 hi then put it back in drive and cranked the wheel all the way right so I could pull out. The ground was covered in snow but as I was moving forward with the steering wheel turned the way it was I felt/heard a clunk/thump until the steering wheel was straight again. Can anyone tell me what I was hearing? Should I keep it in 2wd if I have to crank the steering wheel like that even though it was a snowy surface?