In my experience, a squeal from the front wheel means either brakes or a bearing. Since the brake possibility has been eliminated, have the shop check the bearing assembly. Our Taurus had a bearing problem last year; couldn't just replace the bearing alone; had to replace the assembly itself.
97 150 Super Cab 4x4, 4.6, 3.55, 265/75R16. Added: Ford running boards & molded mud guards; Class IV receiver; Delta Truk Pockit boxes-2; Dupli-Color roll-on liner on bed front & sides; Bed & tailgate mats; Ventshade Stepshields; Monroe Reflex shocks; Steel Horse Bull Ring cargo hooks-4; Extra leaf in rear springs; Lund Interceptor bug shield; Transmission cooler;