GKN diff query

[jesfirth]

the diff in my 95 500 is a GKN - it has a clonk so its got to come out. now that diff has the filler on the side of the diff. I have a spare diff which I am getting rebuilt with a lower ratio for sprints but it has no side filler hole - the oil filler hole is on the rear fin instead. I have had a good look and struggle to see how I can fill it from the rear once its in the car. see photo of the rear diff vents/filler hole. does anyone have rear filler hole in a griff or chim and can you fill the diff when its in situ?

or do I need to get the lower ratio innards fitted in the case with the filler hole in the side?

Edited by jesfirth on Sunday 5th November 09:36

[Aussie John]

No problem filling with one those pumps [ a bit like a bike pump ] but I doubt if my filler plug had ever been out and spent two days removing it. Make sure you get the plug free before you put the diff back in.

[jesfirth]

Thanks. I assume a half inch drive can get access between the dins and chassis rail to remove the filler plug?

[Aussie John]

That's the way mate, mine went back covered in copper grease and plumber's tape; no leakage and comes out no worries.

[jesfirth]

Thanks. It will save me swapping the innards between the casings