Here are the notches dis re guard the white dots those were used when i had the u-joint replaced

this is on the short shaft

also you can see they did not have the tool to center the u joint so i told them to use thin washers to center and weld the washer not the u joint


this is the long half of the drive shaft. disregard the white paint ,that is what the shop used to put every thing back to stock configuration

god shot of the notches and the washer welded in