Thread: Salisbury diff housing failures

It was a Rover axle, the plates being needed probably because of the way the housing curves up to where the diff bolts on. But looking at your photo, maybe the inner tube would just weld onto the cast centre housing of a Salisbury. Interesting.

Originally Posted by djam1

Arthur can you tell us what the ID of your spare housing is?

I will see if I can get to it tomorrow, it's still has it's hubs and stubs attached.

Originally Posted by isuzurover

From memory 80 mm OD, and so ~68 mm ID for a 110. You would want a tube that is ~68 mm OD and at least 4 mm wall.

I wonder, if there is a supplier in Hobart of that size pipe and what grade of steel / alloy would be the best to use?
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hi arthur, try ian weatherhead engineering, 6272 1341. he is very busy, and can be a bit brusque due to this but is an excellent engineer/ machinist. he made my adapters for the isuzu to zf auto, works of art

jc

Originally Posted by wrinklearthur

I will see if I can get to it tomorrow, it's still has it's hubs and stubs attached.



I wonder, if there is a supplier in Hobart of that size pipe and what grade of steel / alloy would be the best to use?
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No point in using any high strength steel for laminating the inside of a Salisbury axle tube. In bending and torsion, the highest stress will always be on the outside diameter of the existing axle tube. The material in the laminating sleeve will carry much less load than the existing axle tube.

The modulus of elasticity, which is the material property that affects deflection/stiffness, is the same (within a negligible amount) for all low carbon and high strength steels.

It would be more important to match the OD of the sleeve to the ID of the existing axle tube to achieve a close fit, and how you weld the two together so the sleeve is made to share the load from the transition of the cast diff housing to the axle tube.

I spoke to an ex associate of Maxi Drive yesterday and they indicated that Mal only did a few Salisbury housings.
His way of strengthening them was to put a piece of 12x40 mm strap from one side to another running under the pumpkin.
As Serg has previously indicated you could get things caught in any arrangement like this.
I suspect that Kangaroo parts could get caught on it on the way out the back.

Found the cause of the destruction.. (of the Red 110)

Rear axle broke at 90km/h after hitting a massive pothole. Stranded 200km from the nearest town in Botswana with Lions & Elephant roaming the bush.

From this link you'll see more pics and how they managed to get going again.

Flickr set: Defender 110 Breakdown in Botswana

They even managed to break a Hilux during the recovery. Bad luck chaps.

There you go - 90kmh is too fast on the dirt. And before anyone says anything, yes, I've done it, and after a few very close calls, no, now I don't.

Originally Posted by Davo

There you go - 90kmh is too fast on the dirt. And before anyone says anything, yes, I've done it, and after a few very close calls, no, now I don't.

Except it looks like a tarred road where they are stopped. He just says "Rear axle broke at 90km/h after hitting a massive pothole"


Bob