What oil do i use in the gearbox of my old thwaites all drive? Ive sorted the bent gear stick and when i had the cover off i noticed it looked quite gloopy so am going to drain and change. Also any idea on how much gearbox oil it needs. Theres no markings on the dip stick and im convinced its been snapped off as its only about 10 cm long but could be wrong.
cheers
martin

Which model ot Thwaites? I think I have used an ep 80/90 in our old 4000. What you need to watch out for is water ingress down the gear lever gater.

Not sure of the model all i know its a 2 ton all drive pic below. Any ideas on how much oil the gear box needs?

Looks like a similar but slighty newer version of ours. Is that hand crank? If I get a chance I'll have a look at our one. It could do with a run.

edit: Ours is the model fitted with twin petter, front axle breaking only. It has a Newage 3sp gearbox. The dip is combined with the filler plug. From the seat of the plug to the high level is 108mm and there is approx 10mm between the H and L.

Don't use ordinary ep in the axles with oil immersed brakes.