Singer Le Mans gearbox noise, update

[Dentman]

We removed the gearbox today. There is movement on the the main shaft but more significantly the 1st gear set is b@ggered.
The teeth are worn wafer thin. The gearbox number is 3546.

Are there any 1st gear sets being remanufactured ?

[tvdwerf]

A good workshop can make any gear set from scratch.
I used a few years ago a workshop like this to remake gear parts from a digging machine who was not in production any-more.
I am sure in every country these workshops can be found.
For example, the people from the rally Paris - Dakar are using these workshops to modify the factory gearbox for the rally.

[ColinB]

You could also try the spares holders for SOC and SMC. There are bound to be used gearboxes that could be cannibalised.

[Dentman]

I have used cold laser welding before to repair a rear diff, so that is always an option.

[jeans_old_man]

Be careful if you swap gears from another box. I have found that early boxes had a slightly different distance between shafts. The cogs will go in but the mesh is all wrong. Guess how I know this

[Dentman]

I was kindly offer a complete gearbox by David Freeth, that had been on his shelf for 40 years. We have turned it over manually and given it a clean up. We will refit it tomorrow and fingers crossed it will be noise free.