So I began to hear a rubbing sound on the drivers side of my truck yesterday while on the way to work.

It sounds like metal-on-metal and it is coming from either the front wheel or back wheel. The sound is consistent with the wheel spinning, like it is rubbing only at a certain point in the wheel rotation.

Could this be the brake pad rubbing on the rotor?

If not, what else could this be?

I need help!

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2004 Ranger XLT
4.0 V6 4x4 Automatic
49K miles and 4.10 Gears

Bone stock as of right now, with the exception of plastidipped XLT emblems and wheels, a diamond plated Ultima toolbox, and the throttle cable mod