Still curious about that Humber diff that Miss Piggy has, I asked about it at the time, but never got clarification. The centre carrier in the diff is fully enclosed, unlike the std Commer unit where you can see the planetary and pinion gears. This enclosed type of carrier was often used in Limited Slip Diffs, enclosing the clutch plates etc. Martin, does this diff look the same as the one you have? Someone put me out of my misery, if it is an "open" diff and not LSD, how do the gears get oil for lubrication?
Cheers
Stephen