CM, nice pix, sorry to hear that you are having so much problem,,looks like they should be the same size or close to it to match,,I have never replaced mine, had it out when I had to install a new pulley/balancer with a new woodruff key, I had some problem getting it back in, mine is a tight fit, I would hate to try and put one in that was not the exact measurement,,any way, no help here, but good luck, I am sure someone will come up with something, you may be right about going to the radiator shop and seeing them,,,good luck....Fred
