you may need to contact taurus. have your model and serial number ready. they call it a captive recoil spring assembly. they could probably look it up and get you an exact measurment on it. i was trying to replace mine but ran into the same problem. the only way ive ever seen them off is if the assembly is broke. you can order a extra spring from taurus so there must be a way to be able to disassemble it.
http://bedair.org/P226/Guiderod22.html this is a link that zemus posted earlier. may be easier to order a premade one rather than making one yourself. the guy who owns this site has an email address so he may be able to answer anymore questions for you...
http://bedair.org/P226/Guiderod22.html this is a link that zemus posted earlier. may be easier to order a premade one rather than making one yourself. the guy who owns this site has an email address so he may be able to answer anymore questions for you...