I am rebuilding the power steering box on my 40. The PO said it was off a mini truck. All evidence, mount etc... points to that being the case. However I do not know the year. I need the last seal on the shaft. I thought part number 90311-32016 was the one. The internal diameter is the same but the outside diameter is about 2mm too small. two questions. 1 does anyone one know the correct part number for the seal? 2 Since this seal fits tight against the shaft will it work? Pictures are of the location of the seal, two of the original, and one of the new one.