ok its easy, just done mine lol.
i used a blunt chisel.
undone the plate at rear on axle housing.
use the blunt chisel to knock to 540 cog on inside as not to mark the teeth.
once shaft has come free, you then have to get front small bearing off to get out of the housing, i held mine up against the large cog thats in your way, gently tapped shaft until bearing came off.