hi, I've been doing some reading about front/rear diff oil change, the best I found is the great link to disco3 with directions and pics, my question is are the oil levels/amounts the same for a RR sport, also what about transfer box oil and amount.

Yes, exactly the same.

Transfer Box is fill to spill (1.5l). By the book, LR's own (and expensive) "Special Transfer Box Oil" should be used, but quite a few of us have used the same Castrol Syntrax as in the diffs.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Great, thank you kindly for your reply,

Mmmmm just phoned Land Rover and they tell me front rear diff takes 2.1 litres and transfer box takes 3 litres, that's not correct is it?

No.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Front diff takes 0.6/0.7 litres, and the rear p, from memory is around 1.5

Yes, thought they were way of the mark, and it's ok to use same oil in diff and transfer box, So if I get 4 litres diff oil that should be adiquate for all 3.. Sorry for being bit dumb it's just want to make sure as its about 50 mile round trip to Land Rover.

I used this in all three and haven't noticed any issues: http://www.advancedfactors.co.uk/tyk500010...-311-p.asp Yes, 4 litres needed to cover it.

PS: You may find it usedful to have a syringe/pump to get it in. I use one of these: http://www.advancedfactors.co.uk/vs405-oil...3857-p.asp

Also, take a look at the diff bungs and consider replacing them if they look liable to round off...  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Cool Thank you yet again,

Not at all; you're most welcome.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

I've been reading about the front diff breather filter causing pressure build up due to the factory filter restricting air flow, so is it recommended to do the filter mod.

Yep, never a bad thing to do, just chop the old one off and stick one of these on: http://www.advancedfactors.co.uk/lr019450-...5131-p.asp  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Cool, that's ordered.