Good idea. I was thinking about making one and then got lazy and bought one. On your tool I think you need to round over the master cylinder end of the tools rod more to match the boosters pin, or your tools rod will not quite reach the bottom of the round hole in the master and your measurement will be a bit short.
Nice :) Think Ill make a similar tool for my next brake booster install. If I undertood you right. The only important thing is for the pipe to be the same legnth as the wood.
