suspected rear diff issue

[Thomas-the-Terrano2]

Hi. Towing back from Wales t2 gained a droning noise. Got home and film of oil like allover towbar and towing electrics. Cornering and rear axle. Lsd? Giving noise. Clatter like. Related? Any thoughts please.

 

[Banshee]

Hi. Towing back from Wales t2 gained a droning noise. Got home and film of oil like allover towbar and towing electrics. Cornering and rear axle. Lsd? Giving noise. Clatter like. Related? Any thoughts please.

C200 or H233? It's a 3 litre isn't it so likely the first.

Does the casting of the casing show any signs of rusting or flaking away in chunks? Mine has done this on the top and now I have a pinhole where if I get wild off road I get a little wet patch so I sorted it out temp. I want to swap my whole axle for an earlier one as the H233 are far superior and if you're very lucky, I have seen them with rear discs!!!!!

Failing that, I'm pretty sure the rear axles on the C200's are the same across the 2.7 & 3.0 although I will stand corrected on that if wrong, I will be hopefully pulling in a later Terrano soon that I'll be breaking from Toshi on here :thumb2 If that's any good I can supply, deliver and fit it for the right price, mates rates of course :thumb2

 

[macabethiel]

Rear Diff oil ?

You may have already but I would start with checking the diff oil level. If it's significantly low then I would consider if the diff breather (causing seals to pressurise) is blocked, likewise are the rear half shaft bearing seals leaking, (oil on rear brake back plate). Then of course the pinion seal into differential.

If you have lost oil from any of the above or through corrosion of the diff cover plate you could be lucky and noise is just lack of oil.

On our Jeep WJ I had oil swarf as you described when it was Mot'd earlier this year - it was the rear axle shaft bearings/seals. Our Diff always played a note at certain speeds under light load, new diff oil when the seals were done seems to have made it less audible.

 

[Blocky10]

As above, the axle with a plate on the rear is the newer one and mine pin holed up on top.
I did replace the diff oil seal before realizing, and it wasn't a bad job, so if you're lucky it might be that. If not I did pick up an earlier axle which had the larger brakes and abs sensors still plugged into it, which worked and are still working without problems.
If you are swapping from later axle to earlier axle, the only difference is ratio so will be different from the front diff. It's not that greater difference to cause as issue though.
I bought my replacement axle from a 99 2.7 that was being broken so bought the front diff too.
Good luck:thumb2

 

[Thomas-the-Terrano2]

thanks for pointers, waiting for our mot'er to see it next week. Elton also gave tips
via facebook.

 

[Thomas-the-Terrano2]

Very damp under there almost a mud like cover combined with dirt.

Sent from my EML-L09 using Tapatalk

 

[solarman216]

That is a very rusty diff/axle, good news is all that oil will stop it rusting further, and the oil is coming from the pinion seal, that is evidenced from the oil on the cross member above, Rick

 

[Thomas-the-Terrano2]

So it has been with the engineer today.

Says was empty, has refilled but has leak.

Suggested look to replace main seal and maybe gasket too.

It runs as should though has kept the slight howl on power on,
but atleast the clanging has gone, presume the LSD complaining
of lack of oil.