Quoting Stationary M25 Traveller: Yup - there is a seal where each driveshaft comes out of the diff. Remove the wheel, unbolt the caliper and secure it out of the way - carefully if a copper brake pipe. Unbolt the deDion ear and remove it while withdrawing the drive shaft from the diff.
Lever the old seal out - carefully, so you don't score the inside of the diff housing.
R&R advise filling back of new seal with grease to prevent spring from becoming dislodged as you tap it in.
Press new one in using a suitable drift until home.
Insert drive shaft and reattach deDion ear, caliper and wheel.
Check oil level - up to threads of filler plug on rear offside of diff. Through the boot floor is easiest.
Job done.
You can get seals from Road & Race, Redline, CC and no doubt other places too.
Need to get round to this before all the oil goes walkabout. Being a spanner newbie, and the sort of fool that needs to understand everything before I start a job, can I ask the wise heads some dumb questions?
1. unbolt the caliper and secure it out of the way - carefully if a copper brake pipe. – I have copper lines, so I guess I don’t bend the copper , but do I need to loosen a joint to get them to move, or...?
2. … withdrawing the drive shaft from the diff. – I assume this doesn’t just come out in my hand, so how is it released?
There’s a “toothed” ring around the prop on the side facce of the diff. Does this need to be removed, if so what tool?
3. Is there a way to drain the diff first?
4. Is the seal a standard part across all diff? If not, how do I ID the one I need to buy?
Thanks in advance chaps!