I have a 94 toyota pickup 4x4 and it shake when driving high speed or hiring the brakes.Ive changed all front wheel bearing,all new tires,front rotors and brake pads and with all new shocks plus did aliment on it .An it still shakes need help

SOURCE: shaking while braking

I DON'T KNOW IF THIS WILL HELP BUT NARROW IT DOWN,WHEN BRAKING WHAT SHAKES,STEERING WHEEL SHAKES BACK AND FORTH IT WOULD BE A FRONT BRAKE ISSUE,MAKE SURE CALIPER HARDWARE IS OK,AND CALIPER SLIDE PINS ARE FREED UP,IF THE WHOLE CAR SHAKES IT'S THE REAR BRAKES,PINS SLIDER AND HARDWARE ON REAR ALSO,HOPE THIS HELPS

SOURCE: I OWN A 2004 FORD

not sure what cycoman is a guru or expert of but the 04 f250 has no struts. its a leafspring, shock front end, i had the same problem with mine that turned out to be warped rotors. i see youve changed these and say the tires are newer so my advice would be to check the balance on your tires at a local tire shop. they usually do this cheap.
next would be the upper, lower balljoints and stearing components like tie rod ends, also the factory steering dampner may need replacing.
also the mass air flow sensor would make the truck run rough but would have nothing to do with front end shake from braking.

hope this helps.

SOURCE: Shaking in the front when braking at high speeds.

does steering wheel shake only when brakes appliad at higher speeds?if so its the front rotors or rotors conforming to runout of front hubs.have rotors turned with on car lathe and make sure lugnuts are torqued to specs.even under the best conditions and service youll be lucky to get 15k without reoccurance.very common on all vehicles with cast iron brake rotors...unfotunately.

SOURCE: 2008 Nissan Sentra front end shaking during high speed braking

check the ball joints or the tie rods

SOURCE: Uplander shake when braking at speed > 60mph

you have a rotor that needs turned or replaced,it is out of true from heat,hopefully when pads were put on the caliper slides were cleaned and greased