i was wheeling last week when lost the front u joint and all the way home had to go 25mph or the noise was so loud if i had manual lockers i could have just disengaged and drove home but now i need new u joints and some way to patch the hole in my fender well so my question is has any one done this and did it help your gas mileage? and what was the cost? and was it hard? eny help would be awsome!