Gear box filler and drain spanner size

[teohenghooi]

Hiya,I owned a 1963 1098cc Morris Minor and would like to do the gear oil change myself but do not know the spaner size.Please help.

[bmcecosse]

The gearbox filler plug is the wheel nut size - in theory the wheel key can be used. I honestly don't know the drain plug size underneath - but it should be obvious when you go under. The gearbox uses normal engine oil!

[chrisryder]

for the drain plug i've found my 19mm spanner fits pretty well (awaits barrage of insults...)

[Declan_Burns]

For the filler plug (and the wheel nuts) I use an 18mm socket and it's a nice snug fit.
Regards
Declan

[bmcecosse]

I too admit to using an 18mm socket on my rattle gun........