need help quick!

[92SVXLS-LDC]

okay, so i trekked through a "low maintenance dirt road" after a nice rain storm... and when i was driving home i heard a rubbing sound

the rubbing sounded like when my brake sheild on my acura was rubbing, but much less harsh... the sound is definately speed related.. not rpm... and a little metallic sounding, it has nothing to do with my front brakes i checked..... i also checked for the sound when it was on jackstands in FWD mode... nothing

what could this be? heat shield hitting drive shaft? or something expensive... im VERY broke...

also... why does only my drivers side wheel spin in FWD mode?? (until i give it some throttle) sounds like bad news to me..?
both fronts spun in AWD mode...(dont ask how i know... almost a disaster, thank goodness for a decent e-brake)

thanks!!
-drew