Mechanic Q: where is the blower motor located??

the motor wont work on low or medium but it works fine on high. could it be the motor or the switch.

Mechanic Q: what would cause this??

i changed the right front outer bearing and it did not help. when i have it in 4 wheel drive the front end locks up. so took out the sprocket for the 4 wheel drive and it the noise stopped after i changed the bearing the noise started again. i took out the sprocket again and it is still making the noise but not as loud but i do not have 4 wheel drive. the noise gets worse when i turn left and when i get above 25 mphs. what would cause this noise?

A: what would cause this??

yes i have but it wont make the sound all the time and they couldn't get it to make the sound. so they had no idea.

Q: what would cause this sound??

i have a 90 f250 4x4 and it makes a loud clank noise when i turn left or go above 25 mph when i put it in 4 wheel drive it locks up the front end what would cause this and how hard is it to fix? please some one help i am getting extremely frustrated with this prodject please help any way possible thanx in advance for any help.