I'm rebuilding an AX-15 to swap in replacement of my AX-5 (Dakota bellhousing, blah blah blah). Anyway, to those of you who may or may not do this for a living, is it standard procedure to replace the synchros, even if they're well within specs? Other than a couple of bearings, and needing to be cleaned, this things in excellent shape, but I don't want to whish I had done anything down the road. Thanks to those who reply.