Those have a lot of torque to them. I can't recall exactly what the spec was, but that it was the highest torque I had when I did mine.
I used a BIG crescent wrench to hold the cam, with a fairly large set of vice grips locked onto the end of the handle for extra length adding up to the length of a 1/2 inch drive flex bar. And the only socket wrench I had long enough for the sprocket bolt was the torque wrench with which I put it back on later.
Last edited by bobpeters61; Oct 20th, 2012 at 10:02 PM.
Reason: Accidently posted before finished writing.