Type 9 Gearbox Oil Seals

[Spikehaus]

Has anyone changed the front oil seal on a Type 9 Gearbox? (Bellhousing side).

I have removed the front clutch release bearing sleeve to reveal the circlip around the bearing, and renewed the clutch release sleeve seal within my new hydaulic clutch cylinder, but I am concern about withdrawing the main shaft in case it does not relocate or cause damage. Does this have another seal behind the bearing? My workshop manual is for a 4x4 box which is totally useless!

Also thinking about sucking out the old oil and topping it up while its on the bench.