[phutton]

Clearly the three-speed gearboxes need sorting out with some detailed analysis. Perhaps someone with more detailed knowledge (and time) than me can sort it out!

P.

[G.Walker]

Thank you Paul.

Yes this helps. 
The gearbox now is complete.

I have seen that the wide for fitting the gearbox on the frame is 2 inch.
My other gearbox housings of 1927 and 1929 have a wide of 2 1/4 inch.

Some differents of the gearbox bearing covers also.
The 1922/23 version has small ears for bolts of the clutch mechnism. The 1927 version are stronger at this area.

From 1928 the gearbox bearing covers are wider.
I'm now searching still a gearbox bearing cover of the 1927 narrow gearbox to complete and fitting the gearbox on my TT90.

Best regards

C.

[phutton]

It's difficult to be exact, but from the Register entries, we can say it is likely to be from 1922/23.

I hope that helps!

P.

[G.Walker]

Hi,

please of which year and model is the 3 speed gearbox with the prefix  R/10903/189 ?

Greetings

C.