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Austinsevenfriends
Axle tubes - Printable Version

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Axle tubes - Howard Wright - 30-05-2025

Hi All

I’m putting together a long nose s/w back axle.  I’ve recently acquired the banjo and some time ago acquired two axle tubes supposedly from a single vehicle. I’ve spent quite some time getting them clean and I started to mark them out for cutting and shortening.


.jpeg   IMG_5192.jpeg (Size: 131.92 KB / Downloads: 270)

Notice the problem!  Yes two near side tubes!

So does anyone have a spare offside tube?  Any A7 tube (apart from the early ones without adjusters) will do, even a D shape axle. I think I can cut off the D shape part and substitute one of the old nearside halves (back to front so to speak). Unless anyone can think of a reason why this won’t work.

I intend to convert to Semi Girling backplates so even a late semi Girling axle is acceptable. On this point, at what angle do you drill the backplate bolt holes to ensure the brake lever orientation is correct?

Cheers

Howard


RE: Axle tubes - Steve Jones - 30-05-2025

I've done this using appropriate parts from a mix of axles and it works fine, Howard. Of course, you have to be very careful getting it all iined up before welding. As you can see from the photo, I used a bare chassis fitted with a pair of springs to check it was all lined up. You also have to remember that the adjusters are handed so need to get them on the correct sides otherwise the scrolls will send the axle oil out of the banjo.

   

   

Steve


RE: Axle tubes - Howard Wright - 30-05-2025

Hi Steve

Thanks, this gives me confidence.

I’d forgotten about the scrolls and, Sod’s Law, I have two left hand adjusters!  So if any one has an off side tube could you check it’s got an adjuster fitted please.

Cheers

Howard


RE: Axle tubes - Stumpi - 30-05-2025

When working on a D type axle to straighten and strengthen I used a 5foot length of bright bar passed through the casings, with the adjusters fitted it was easy to feel which way to move it in the press.


RE: Axle tubes - Charles P - 30-05-2025

A D type can be sacrificed in this process.
I may have a scroll lying about, having canabalised a few axles over the years.
Which side do you need?


RE: Axle tubes - Howard Wright - 30-05-2025

Hi Charles

Thanks it’s an offside R adjuster….but hold fire I think I may have sourced a complete axle.

Cheers

Howard


RE: Axle tubes - Charles P - 30-05-2025

(30-05-2025, 08:01 PM)Howard Wright Wrote: Hi Charles

Thanks it’s an offside R adjuster….but hold fire I think I may have sourced a complete axle.

Cheers

Howard

Ok. That saves me venturing into the storage shed for now.


RE: Axle tubes - dickie65 - 31-05-2025

I have some 1933/34 D type axle parts that are available in SE Cornwall.
They probably still have the scrolls in them.


RE: Axle tubes - Howard Wright - 31-05-2025

Thanks Dickie

I’ll bear you in mind if things don’t go to plan with my other source.

Cheers

Howard


RE: Axle tubes - Howard Wright - 02-06-2025

Hi All

The new axle tubes are now with me and included adjusters so I’m good to go (and I have). Thanks for everyone’s offers.

Question….I’ve drilled and tapped the axle ends for 5/16” bolts but when comparing them to the front Semi Girling stubs there is only about 3/16” of flange thickness whereas the fronts have at least 1/2”.


.jpeg   IMG_1414.jpeg (Size: 151.55 KB / Downloads: 33)

I would put nuts on the back but there are stiffening ribs in the way of two holes.  


.jpeg   IMG_1415.jpeg (Size: 155.69 KB / Downloads: 34)

Do you think the flange thickness is sufficient?

Cheers

Howard