ARB locker falling apart?

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Originally Posted by dck7aok

I have brocken 2 rear lockers in my discoverys. Same failure. Side plate - crown wheel side bearing carrier. First one broke after axle failure. Second unknown.....ARB was very difficult to deal with but noise on a Sat morning in large show room soon let to progression. I only paid for new seals etc.
Makes a inconsisten clunk depending load as axle carries diff centre load. Can usually feel a difference in rotation of pinion as turned.

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I have considered that if it is a ARB failure that I'll pay them a visit. I don't know what the warranty is but these things are meant to be tough and I've barely used it in anger. I might just use it in anger against their glass cabinet though on a busy day as you say :D

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Originally Posted by rovercare

Dont sound like the diff, checked a frame ball joint AND the arm rubbers??

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A frame balljoint is new as are all the arm bushes front and rear. All done within the last 2 months.

At the mechanics he got under it as we rocked it back and forth fairly violently and he said all was well.

The thump happens when you go over a speed bump and is worse with people in the back seat. Also in first and 2nd gear when you give it some. Also get small thumps whenever it feels like it. However almost never when you are not on the throttle such as rolling down a hill or coasting. Even if you go over bumps.

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Originally Posted by Ken

You would have to ask the question as to weather the backlash and preload were correcrly set at the time of instalation
hard to do once the drama has happened

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It was done by ARB Gympie but they didn't leave me feeling confident in their work/knowledge on Land Rovers.
They seemed to be Nissan/Toyota parts fitters.

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Originally Posted by Utemad

It was done by ARB Gympie but they didn't leave me feeling confident in their work/knowledge on Land Rovers.
They seemed to be Nissan/Toyota parts fitters.

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Meh, they're all banjo style centres, so much of a muchness when seating up a locker, not to say they didn't stuff it up:D

I just pulled my axles out. Well the long side just came out but my short side won't come out as I just dicovovered my garage is just that little bit too narrow :( Must investigate the next house purchase more thoroughly.

Anyway what is the deal with my axles? I thought they had removable end caps but my end cap is part of the axle?
HRC2495 is on the end cap.

Just found something.....................would the fact that my driver's side wheel bearings have more rust/water than grease make the noise I'm chasing? Has more movement in it than it should but I that must be recent as it had no movement two weeks or so ago when I checked it (rocking wheel when jacked up).

By more rust/water than grease I mean it in a HOLEY MOTHER OF GOD!!!!!!!!!! sort of way.

I had a big saga in Gympie on my long service leave last year & the local RACQ guy diagnosed the clunk as worn Uni's in the rear, Same symtoms as yours too.
Turned out to be pass side wheel bearings.
Dore bros were great.
If you have an hour I can go into the details:)
David

Thanks Deejay.

I have looked at the UJs on my tailshaft. Easy when it is on the floor. They seem fine. I have a spare UJ on the shelf though if need be.

I have the Disco back together now. Minus the tailshaft so I can see if it thumps with no rear drive.
It now has oil lubed driver's side wheel bearings. I'll get new bearings for it though and fit them shortly. I had the oil seal for the hub on the shelf. Been meaning to do it for a while. Front was done a while ago.

Justin - rusty/dieing wheel bearings could definitely be making lots of noise. Did you try turning the wheel when it was jacked up and the axle out???

I know of ONE case where an ARB was installed by a dodgy workshop who didn't use loctite, and the hemisphere bolts undid themselves and everything fell apart. But that is rare.

I turned the hub with the wheel off and the axle out. It had some movement and sounded like dry bearings (which it was). Interesting as it didn't sound any different to the others with the wheel on as per normal. I know the fronts are okay as I had them apart not that long ago.

There was no thump on the way to work this morning.
So this afternoon I'll convert the passenger side bearing to oil lubed and reinstall the driveshaft.
If the thumping continues after that I'll drop the tailshaft again for the rest of the week and then pull the diff out on the weekend.