I followed Drivr8 and HillRider's advice in trying to loosen the hex bolt at the bottom of the adjustable part on the drivetrain side, but no matter how hard I tried, I couldn't loosen it. There's actually an identical hex screw on the opposite side, which I find odd. I tried loosening that also, but it did not budge. Do your stems have the same hex screw on both sides of the adjustable portion of the stem?