My boat: 2006 246 Shamrock Open, 5.7 MPI Crusader, Hurth ZF 45a Transmission. Hello, I have a bad rear output shaft seal for a Hurth ZF 45a and am looking for the tool so I can remove the 4 notched output shaft nut so I can remove the flange and get to the seal. Anybody got one for sale or rental?? I'm asking here first before I pursue trying to make one. Attached is a picture of the nut I'm trying to remove. A quick note here... Thanks to the members that advised me what transmission I have as it is missing the ID tag... Thank You!!