Yes that came be and in most cases are the opposite direction. the gerotor oil pump housing is offset from center which when rotated 180 degrees out cause the oil to flow in the opposite direction.I don't believe I installed the cover 180 out, but I will check it to make sure. I don't really understand how it would run backwards. I didn't mark the cover before removing it and I reinstalled it the same as the cover on the other transaxle. Would the covers form right and left side be 180 degrees different?
Have one just like that. I usually just grab a screwdriver and leave my mark.one of these will help solve that issue. I always mark things the first time they come apart.