750a gauge wheel bearing washer

[Tractor Boy]

Hi. Can anyone tell me if they can buy washers to take up the room in the gauge wheel bearing of the shelf anywhere? I know some on here have had some machined. The washer needs to be 24mm internal, 40mm external and about 2.5mm thick.
I can’t find anything from usual suppliers I go to.

 

[AF Salers]

Can’t find them now but there’s been a few threads about this. I used 0.5mm shim washers bought online. Not dear and offers a bit of flexibility re width. @Simon Chiles advises 2mm to be added.