Outer Limits 4x4 Board

Hi Guys
I have a early GQ with a drum brake rear & i want to convert it to disc.
Dose and one know if the axels are interchangeable if i swap everything from the axel retainer out?

I'm in the same process.
You need a complete housing/axles but the centres are inter changable.

a lot of the drum setup only had open centre diffs , buy whole lot and get limo as well