rear diff filler plug

LOOK on the nose of the diff,drivers side just in front of the flange,there should be a horizontal filler and level plug there ,well there is on my siii both front and rear,,,,,dave

Cheers for the reply, Dave.

been over every millimeter of the thing - theres no filler plug anywhere. think i've got a combination of mongrel parts - later diff and earlier axle case or visa-versa.

So, its either source a diff with filler plug, or likewise for axle case (not going to happen), or drill a hole and weld on a bolt that i can add a bolt to to creat a filler plug.

You could use a hydraulic bulkhead fitting with a blanking plug, something like a 3/4 male/male bulkhead adaptor sealed with a couple of 3/4 dowty washers, and capped with a blank plug.
Welding a nut on is probably better and cheaper if you need to remove the end cap.

Cheers for the ideas, Dr P.

Think i'll go the easy route, though. Especially as i've been meaning to do this now for over 6 months.

It will be a lot more work, but if you're going to drill the diff pan then you should remove the diff first so that you can clean out the swarf. You don't want swarf ruining your bearings.

has it got a breather ?

diff out and new gaskets only a little job too,

If yu are going to use it off road then replace the diff pan with a pipe cap (make sure it is not cast) they are like 5mm thick and yu will never need any more protection. you can tap it for a filler plug at the same time.

The Mad Hat Man said:

If yu are going to use it off road then replace the diff pan with a pipe cap (make sure it is not cast) they are like 5mm thick and yu will never need any more protection. you can tap it for a filler plug at the same time.

Click to expand...

Where can you get those from?

Industrial maintenance suppliers such as eriks or atlantic industrials, or a fire sprinkler suppliers, as well as nasty cast ones there are a lot of malleable iron ones which might as well be made from lead.

Hi,

Drain all the old oil out.

Use jack to tilt truck towards one side.

Remove halfshaft (5 bolts ... or is it 6?) Expect oil to drip/pour from bearing as you break the gasket seal. You don't even have to remove the wheel, but its a cleaner job if you do.

I think front diff has filler plug on axle case, rear diff has filler plug on diff case. Probably because its difficult to remove front halfshaft to pour oil in.

602

Pour in measured quantity of oil, through end of axle.

Thanks for the replies Chaps - much appreciated.

It doesn't get used in anger off road, just a bit of field work collecting timber and other bits and pieces, so serious protection of the diff is not really an issue.

That said, I got given a diff guard from a ninety yesterday (pick it up on monday) - would that fit?

Will it fit - most likely if it is the clamp-round type, but if you dont need it, dont fit it. They collect mud and ****e between the diff pan and the guard and it rots the pan thro in next to no time.

yup - its the clamp around type. From what you say, MHM, I don't think i'll bother with it after all.

Thanks for that - one less job to do. I'm all for that.

Do you know what ratio they your diffs are? The only ones I have come across without a filler in the nose of the diff were early Range Rover fronts. Every Series (Rover) diff I have seen has had a level plug eventthough it doesn't need in at the front.

early series 2 diff,

ere matey, is this not the answer, i'v never seen them till now
MPS 4x4 Store Catalogue

Thanks all for the advice - really very much appreciated.

In the end i've decided on the drill and tap method.

Yesterday the diff was removed (Jaysus they are heavy when your lying on your back under the landrover) and new filler plug created with felt washers.

Today, I'm coming to the end of a four day stint of work, that has seen swilvel ball seal, bearings and axle seals/Gaskets stripped and replaced, and back axle stripped, seal's/Gaskets replaced and Diff operated on.

Now, after a few more bits and pieces have been sorted and it's been for its test i may just get a few miles of fun out of the thing before the next disaster eats up more of my precious Annual Leave entitlement. That said, four of the bests day fun i've had in a long time!!!!

yeah, im at it with the spanners on the series2 every day im off work,

them diffs are a heavy lump int they always drop it on yer chest not over yer head

Cheers, Truckcab.

Apparently, according to the wife, if i had dropped it on my head there would be less damage done than dropping it on any other part of the body!!!!!!!