just be careful. My bro tried this on a certified calibration unit, and the method to remove the pin just wouldn't work, so he tried spinning it manually. Never worked completely right after that.
I don't usually like to list ebay stuff anymore...
http://cgi.ebay.com/ebaymotors/ws/eB...m=180293009149
but I need the cash too much to get my 66 and 86 registered so I can drive them again