I am looking for a seal for the motion control shaft on my 1990 416H. Part number 56-3130 is now NLA from Toro. Does anyone know what could be used to replace it? Does this number cross with another suppliers part number? I don't have the measurements of the seal as I don't want to disable the tractor until I have a seal in hand. This seal should fit all Eaton 1100 hydros I believe. Thanks. Bill