Ok I went four wheeling the other day and now I have a problem. My front and rear locker lights just flashed and to my knowledge never locked in. Now I can not turn the wheel and pull forward. It is binding up or something is stopping the truck. I lifted truck in air and wheels spin opposite of each other by hand. I turn the wheel all the way to each side and they still spin by hand. But when truck is on ground and being driven it will stop the truck if I turn the wheel. Any ideas???