check you're u-joints ,you did not say if you had automatic hubs if you do junkem they are nothing but a hassle. check to make sure all are well greased and the u-joints move freely and are not sloppy.check you're calipers and the two caliper pins,ford's are known for the caliper pins to wear out and cause a rattle in the front end . if left to long the caliper will rattle around and cause damage to the caliper and the knuckle. so for a little peace of mind every time you change front brakes put new caliper pins in as well. good luck.