clunking noise

i've recently been gettin a clunking noise while reversing out of my driveway. My driveway is a hill so i just coast out of it, but when i hit the street there's a clunk, i can kinda feel it through the steering wheel too. Any ideas on what it is?

sounds like a CV shaft. Or could be a upper ball joint. jack it up and wiggle the wheel in and out and forward and backward. that will tell you whats going on.