looking for a transfer box for my freelander. Hopefully in west wales.
Thanks.

More information on the vehicle is needed.
Like what caused the IRD to fail as they normally don't just break.
Either it's been driven with incorrect tyres, or the VCU has gone stiff, possibly as a result of it being driven with incorrect tyres.

Nodge68 said:

More information on the vehicle is needed.
Like what caused the IRD to fail as they normally don't just break.
Either it's been driven with incorrect tyres, or the VCU has gone stiff, possibly as a result of it being driven with incorrect tyres.

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All tyre are the same and only about 100 miles on them.

Mel botterfield said:

All tyre are the same and only about 100 miles on them.

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With that little mileage, the current tyres are irrelevant.
What about the tyres that were on there before? Were those all identical with least worn on the rear?
VCU stiffening from incorrect tyres is a gradual process, sometimes over many thousands of miles.
Have you been checking the VCU for stiffening?

Just repeating what Nodge said really, if you don't know what caused your IRD to fail, then putting on a replacement will probably cause that one to fail as well.

Generally, if they have oil in them and the tyres & VCU are in good condition, then they shouldn't fail. Get any of them wrong and they will fail. They are not the best of items to buy 2nd hand for this reason as you don't know their history. The things you should do on a regular basis are outlined here to make sure your IRD stays in working condition...

https://www.landyzone.co.uk/land-rover/tests-new-freelander-owners-should-do-on-their-car.312863/

Is this related to your recent thread about rotational noise?

Do you know where your IRD has failed? Is it on the bearings/gearing to the rear pinion or the drivers side drive shaft support bearing?

Are the gears are OK? If so you can get bearing/seal kits to rebuild your IRD. They are not expensive, but if you need to pay someone to install the bearings, then the cost rises. If gears are damaged, then fixing it becomes expensive and buying a replacement part becomes cost effective. 2nd hand ones are a gamble, but a reconditioned one will set you back quite a bit of cash - especially if you need to replace the VCU at the same time - which is often the case. You should also use a known reputable supplier as there are some dodgy ones out there. You can't go very wrong with an outfit like....

http://www.bellengineering.co.uk/

Nodge68 said:

More information on the vehicle is needed.
Like what caused the IRD to fail as they normally don't just break.
Either it's been driven with incorrect tyres, or the VCU has gone stiff, possibly as a result of it being driven with incorrect tyres.

Click to expand...

No gear crunching just a whirring noise like a worn bearing.
I’ve had the td4 2 years and the tyre have always been matched. The nois is only here when the car is not accelerating or under load. It goes when you accelerate.

Mel botterfield said:

No gear crunching just a whirring noise like a worn bearing.
I’ve had the td4 2 years and the tyre have always been matched. The nois is only here when the car is not accelerating or under load. It goes when you accelerate.

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I've come across the IRD making a slight whine on over run, mine also does it slightly.
How many miles is on the IRD?
I'd drain the IRD so the oil can be inspected for metallic content.
It's also worth doing the one wheel up test to eliminate drag from the VCU.

Nodge68 said:

I've come across the IRD making a slight whine on over run, mine also does it slightly.
How many miles is on the IRD?
I'd drain the IRD so the oil can be inspected for metallic content.
It's also worth doing the one wheel up test to eliminate drag from the VCU.

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Thanks for th reply. The freelander has 121000 on it. About 2000 of mine. Don’t know if the ire has been changed so can’t confirm the mileage.

The best thing is to drain the IRD oil, so you can get an idea of the bearings condition. If the oil has metallic sheen, then it'll be the bearings failing. This normally only happens if the vehicle has been driven with odd or incorrect tyres.
If draining the IRD, undo the filler plug first, but get a new plug first as there're made of cheese and often don't survive the removal process.