Mine has a mind of its own. It loves to let one tire fry. Then the next day you will go to make a turn and it is locked and wont unlock so you spend the rest of the day chirping a tire around turns.
its not a bad job to change it out , i did a basic write up in the diy section . the tru trac seems to do the job real nice from driving it on the street the last day or 2 .