seems to be wrong shape for mating surface. My '91L has an old boot labeled Loebro 2 153 15 75 00 043. (oe is o-umlaut in mfr name) Looks similar to Bosch numbering. Surface next to bearing has a significant half-round groove cut and Loebro part has matching thickening molded into boot to prevent its slipping off from flange. New Akron part 1H130(? it's not in front of me just now) has flat surface and I'm not certain that a cable tie will hold it well. If the boot slips, the cable tie will be on an inclined surface and may silp. Please provide your experiences and advice. I know many bb'rs have replaced half-shaft boots.