rear diff oil seal

does anyone know the details of the rear diff oil seal so i can go get one before i take mine apart

ive looked in the bigjimny shop but there not listed in there

To change it "to the book" you need to remove the diff, whip out the crownwheel, remove the flange and seal, remove outer pinion bearing and change the crush spacer, then reassemble tightening the nut until the pinion is correctly preloaded 7.8 to 14.7 inch pounds to turn the pinion.

Then replace the crownwheel.

Likely why Martin doesn't list them, try a main agent, or one of the agents who sell seals and such through eBay, they would post you one.

If you are doing it "to the book" either change the flange, or fit one of those repair sleeves that everyone has heard of, but no-one actually sells. They don't leak without a reason, you might even have worn pinion bearings.


The way we bodge the salisbury diff on a landrover is to mark the nut and the flange, and put it back to exactly the same place. This requires that the flange goes back on the same spline.
There is a possibility of the pinion bearings failing earlier though, probably much later than they would if the oil all leaked out.
No reason why this shouldn't work on a Jimny :whistle:

Having said that, Landrovers go on for 20 odd years after they have been bodged like this. They usually get a multi bodge, because the leak is caused by wear in the seal surface of the flange, and we can't change it without redoing the preload.