Hello,I am a new member so please go east on me.I do not own a skid steere or any other heavy equipment. My question is simply,when viewing many skid steeres I have noticed that many of them (all brands) the front tire appears larger than the rear. Wouldn't this mess with the final drive? If one tire has to spin faster than the other I would thing that this could cause a problem.Next question,how can a person change the oil in the final drive on a wheeled skid steer? Am I missing somethig. Thanks, Ken