Help with drawing a part

[Mayhem]

Thank you Terry. I'm going to have to read that a few times to let it sink in but I really appreciate the length to which you have gone in your descriptions. At the moment, the only other parts I have are the head casting (into which the boss fits), the shaft the extends through the centre hole (through the boss) and the shaft that moves through the lower bore. The rest will be ordered from Kondia, so I will probably have to wait until they arrive.