Chas, I tried Bontoft on the number I had from my invoice 3 yrs ago. Not in service. Thanks just the same

Google has him as a serious powerboat racer in WA. He has a CC userid, but no recent activity.
Bob, thank you, that pic is very useful. I will start tomorrow peeling the car off of the diffy. I will just see what is in there. Surely if he used the original casting he wouldn't have changed the axle bore size, at least
thanks and regards,
Sam