try having your motor mounts checked out
the noise coming from this truck is the uv goints
thumping sound coming from front wheels when you let go of the gas pedal going at a moderate spped?
try spitting on the front rotors. This helped and my brakes are like new
A damaged/rusted/warped brake rotor on the right front.
Front rotors are warped and need to be replaced. Could be an out of round disc brake rotor
Have those two front tires checked out there might be a bulge or a broken belt in the tire.
Bad tire? Try rotating to another location Wheel bearing?
water/friction
if it is front wheel drive then you need new drive axels
if its when you are breaking it is possible it could be a rotor if you hear like a roaring or grinding noise coming from that side also could be a wheel bearing
If it is a thumping and a front wheel drive car, it is probably one of the axles.
is the humming coming from the front end of the vehicle? i have a 1996 explorer with the same issue. yes the noise come from the front but not all the time seems to make the humming noise when it gets hot