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JamesF

Member Since: 10 Nov 2016
Location: Hitchin
Posts: 71

Gearbox and diff oil

Hi all
Can anyone tell me what oil I need to refill my gearbox and diffs on my 1998 Defender?
Also what size sockets will I need for the drain and refill plugs.

All very confusing

but fun finding out. This forum is a mine of information although I do find myself scratching my head a bit lol

13th Nov 2016 7:01pm

Screbble

Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2103

2004 Defender 90 Td5 XS CSW Zambezi Silver

I'm guessing it's a TD5 with an R380 gearbox and std axles?

If so, you can use EP90 for both axles and the transfer box BUT not in the gearbox.
For the gearbox you need MTF94.

I recollect that a 1/2 drive will do most of it with a torx T55 for one of the fillers - but I can't remember without looking.

Contact Opie Oils - a forum sponsor here - they'll point you in the right direction and you'll get a forum discount

13th Nov 2016 8:45pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

I think there's a typo in the OP and his 90 is an '89. In which case, it'll have an LT77 gearbox that uses ATF.

EP90 for the diffs and transfer box still, though. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

13th Nov 2016 9:21pm

Screbble

Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2103

Ah yes

Well spotted

13th Nov 2016 9:39pm

JamesF

Member Since: 10 Nov 2016
Location: Hitchin
Posts: 71

Thanks for the replies chaps and yes good spot. Fat fingers and small keys

19th Nov 2016 11:13am

Vogler

Member Since: 02 Nov 2014
Location: Brussels
Posts: 309

The plugs in the axles are 1/2" like the most common socket wrench.
The drain plug of the R380 is either a large hex (with a single use copper gasket ring) until 2004, or a 3/8" square like a medium socket wrench (on defenders at least). Tight space, a 1/2" socket with adapter to 3/8" won't fit unless you remove the drive shaft at the gearbox. Don't overtighten when refitting them, especially the drain plug. Despite having taken care the last time, I'm now struggling with it and have 'unsquared' the hole in doing so.
Make sure to check first if you can unscrew the filler plugs.

Good luck in dodging the oil

19th Nov 2016 12:01pm

JamesF

Member Since: 10 Nov 2016
Location: Hitchin
Posts: 71

Thanks
I will check that.
thanks for the heads up. Just hope my head does not end up covered in oil!

22nd Nov 2016 10:20am

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