[Crown Wheel and Pinion]

I am fitting a different ratio to my back axle. The new pinion has etched on it a dimension.(83.71) Can anyone help by telling me what  this refers to. It does not appear to be the distance from the pinion face to the crown wheel centre line.

The 4.1ratio cwp removed(in good order) is now surplus-any offers?

[Hood frame fixings]

I have removed my hood frame for painting and found that the lower countersunk screws  were not present. All I have is the hex cutout in the B post. Can anyone please tell  me what is missing?