Hi, I have a pretty clean 440 that I fixed and want to sell. Unfortunately the cover I bought (AM) online was not even close to fitting. Tried to modify with Dremel, no luck. I', a little confused as to whether a 445 or 450 clutch cover will fit. When I try to lookup part numbers, cant seem to get the scoop. Any one know? 9 and or happen to have one for cheap)