An A134 would shorten the center distance by 2". I notice with the A138 you have the adjusting pulley (behind the two big clutch pulleys) all the way extended, so with an A134, by the time the slack is taken out of the belt, the adjusting pulley will probably come back to something a bit more normal as well. I had the feeling when I read your first post that A138 did not seem familiar but A134 did, but I'm still not sure about it. I looked at the Greenfield parts lists on Outdoorking, because often the mower manufacturers' part numbers have been overmarked with the standard belt part number (such as A134) but unfortunately none of them seemed to have been marked up. So, please let us know if the A134 fits and works properly. Then hopefully we'll be able to search and find this thread in our archives in future.
