Possible Bent Chassis or Rear Axle Housing

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Originally Posted by LandyAndy

Mechanical Sympathy.
Perhaps Mario should sell tojo parts too.
Andrew

Anarchy 4x4 - Mechanical sympathy | Facebook

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Tojo parts! Pfff, sacrilege , blasphema, wash your mouth out with soap young Andrew ;)

Are you sure about 30 degrees, my thoughts are that the car would just travel in circles and crab walk everywhere.
I bent a rear rover housing by jumping the car in a winch challenge, I pulled the centre and both axles out and ran a stringline through the centre of each axle tube and It did not line up with where the diff hemisphere lives. Then subbied it out to jack mac to straighten it

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Originally Posted by Jazzman

The rear axle is 30 degrees out of true. The rear left and rear right are skewed to the right. I have to turn the steering wheel right to compensate and not run off the road,it is not much to compensate but has lead to front tire wear.

Before people ask the front alignment is right, 2mm toe out - not 2 degrees as mentioned in my original post by mistake.

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Have you checked the condition of the A frame, balljoint and bushes?

Like fitzy said, are U sure it's 30 degrees, or does that amount include some 'creative license' :D

ps. I'd have thought that if the rears are skewed right, to compensate you'd have to turn left!
If you turn right with the rears skewed right, you'd be doing a U-turn!

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Originally Posted by AK83

Have you checked the condition of the A frame, balljoint and bushes?

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D2s don't have an A FRAME ball joint, totally different to a D1

The longitudinal rear axle location in a D2 is provided by the large bushes under the axle on the trailing arms and the bushes at the front of the trailing arms.

Unless the axle is physically bent, this would be the first place to look for the problem. As the bushes are quite big, 2 failed bushes or the failure of the front bush could allow the axle to move out of alignment.

So the first thing to check would be to drop the trailing arms and look at the bushes.
Regards Philip A

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Originally Posted by PhilipA

The longitudinal rear axle location in a D2 is provided by the large bushes under the axle on the trailing arms and the bushes at the front of the trailing arms.

Unless the axle is physically bent, this would be the first place to look for the problem. As the bushes are quite big, 2 failed bushes or the failure of the front bush could allow the axle to move out of alignment.

So the first thing to check would be to drop the trailing arms and look at the bushes.
Regards Philip A

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All The bushes were replaced with genuine parts a day before so they are out of the equasion.
OP did say.
"By the way, I've changed the rear radius arm bushes."

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Originally Posted by Jazzman

The rear axle is 30 degrees out of true. The rear left and rear right are skewed to the right. I have to turn the steering wheel right to compensate and not run off the road,it is not much to compensate but has lead to front tire wear.

Before people ask the front alignment is right, 2mm toe out - not 2 degrees as mentioned in my original post by mistake.

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Bending the housing would have the wheels pointing in opposite directions, or give you the racer boy camber look (in most cases anyway)

If both wheels are pointing to the right you have probably bent a radius rod. Or you have popped one of your new bushes on its first outing (been there done that) one off manufacture defect or something equally red herring.

From what you describe, lots of flexing and no jumping or loud bang, it is very likely a radius rod bent and probably the left one bent shortening it and steering the axle to the right.

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Originally Posted by SSmith

. Or you have popped one of your new bushes on its first outing (been there done that) one off manufacture defect or something equally red herring.

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Unlikely to pop out new bushes. He had this problem before the bushes went in , so he replaced thee bushes the day before he took it for a wheel alignment check, so he hasn't been on any outings with the new bushes.
So with old bushes and new bushes only a few hours old the problem is still there.

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Originally Posted by Roverlord off road spares

Unlikely to pop out new bushes. He had this problem before the bushes went in , so he replaced thee bushes the day before he took it for a wheel alignment check, so he hasn't been on any outings with the new bushes.
So with old bushes and new bushes only a few hours old the problem is still there.

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Thanks for the extra info.
How were the radius rods when the new bushes went in?

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Originally Posted by SSmith

Thanks for the extra info.
How were the radius rods when the new bushes went in?

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I didn't notice they were bent when I removed them to press the new bushes in. They came out easy and went back in easy. I did one at a time to make sure the same one went in the same location.

Perhaps I should take them both out and see if it is possible to bolt them both together using the same bolts used to mount them to the car.

In theory, if the holes don't line up that could be my issue. It is unlikely they would be different lengths from the factory.

If my axle housing is bent it won't be bent on a vertical plane (like the result of jumping), it would have to be a horizontal plane. And this seems odd.(This is bad as the uni joints will be getting a work out, mine has a range rover classic tail shaft so it has uni's at both ends, no rubber doughnut)

If the mounts for the trailing arms on the axle were bent, it would also behave like a bent tailing arm.