I run the Ski-Doo scratchers on my axys 174. Had similar problems with these and especially the stock scratchers. Doo scratchers have lasted and work great. You need to drill one hole on each side and they fit in no problem. Throw tons of snow, no problem with overheating, keep the sled nice and cool. Id recommend going and buying a set and trying it out!
doo is a nice design but they break more then any other scratcher I have tried. Wrecked 3 sets before I went back to the RSR. Bottom line all the hard ones break in my experience. Have a set of cable scratchers that lasted 7 years and other ones that didnt make the first ride! Have to waste a bunch of money till you get a good set it seems.