I have an oil leak on my diff (Salisbury 7HA axle) and after a bit of investigation I have discovered it's coming from the right hand one of the two what look like Allen screw heads (circled). As you can see the oil is trickling down the diff casing onto the drain plug.

Does anyone know if these are Allan screws and can be safely removed for cleaning up and maybe re-fitting with thread seal? Or are they something else?

[Linked Image]

Last edited by BigLes; 22/05/20 04:35 PM.
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