80 Series Rear Spindle Replacement

[Bayan Dundee]

I have an 80 series rear housing with buggered spindles from spun bearings.

Thinking about having a go at welding on new spindles cut from another diff housing, just chasing some advice from people who have done this.

Where I am there are no off the shelf alignment bars and pucks available as this isn't commonly done.
Anyone with any ideas on a simple alignment set up that I can do at home without a lathe that will work to align the spindles while I weld them?

 

[Rusty Marlin]

What's wrong with the other diff housing that precludes just swapping out the rear end?

 

[Bayan Dundee]

What's wrong with the other diff housing that precludes just swapping out the rear end?

custom job put into a 75 series with leaf springs, will have to cut and weld a lot to convert another housing, thinking easier to have a go at the spindles on this one, have a pair already lying around ready to go.

 

[Rusty Marlin]

Any chance you can get time on a lathe?
Here's how its done.

 

[MUDZLLA]

Kriky!

 

[Broski]

I don't think you need a lathe big enough to put the axle in, but most like you need to have sleeve made to fit inside the housing.