 my econoline won't drive streight
I purchased a 1999 Ford Econoline and am having troubles keeping it going in a line. i'm having problems with the steering controll as it is drifting. It drifts aroung the lane and can be a handfull to controll. I have replaced the ball joints and the steering gear box. Neither of those have solved the problem. Is this a common problem with this series? what should i do to fix it?
It has the 5.4 v-8, it's a workhorse. I can not afford to put any more money into it. | 
