steering locks up while driving!!! please help

[petrie925]

while driving my 01 f350 on the freeway the steering locked up on me only for about one second, the second time it happen i lost the brakes as well, i replaced the hydro-booster and everything was fine for about three days, now the steering is acting up again, it feels as if i turned the truck off but i still have brakes, any ideas

[rtrwtr]

i have heard that a tight u joint will do this but can not say from experience. hope it helps

[Ray Bennett]

How are your ball joints and tie rods? My friends truck was doing this and it turned out the front end was shot.

[Quickhorse]

Front axle joints . . . do them both.