Thanks for the feedback so far. I completely understand the comments about preserving what I have and when I do the chassis swap I will retain the original chassis and other parts so that it can be returned to original spec if someone desires at a later date.
The wheels and tyres that are on my truck look identical to the one with the red cross medical marking about halfway down the page on the link from Paul WNC. From reading the full post it would appear that the wheel bearings may be different to the 5 stud wheels.
As a bit of history of my truck it has spent a lot of its life as a beat up farm truck that had the door removed for quick access. My history with this truck goes back to 1975 when I was 4 years old. Dad purchased it at a local clearing sale. I was allowed to ride home in it along some back roads. This is one of my earliest memories. From the age of about 7, I started driving this in first or second gear helping with farm jobs such as cattle feeding. I spent many hours behind the wheel carting hay and other farm jobs. I drove this truck up until I turned 15 and joined the Australian Air Force as an apprentice. A few years ago the farm was sold off and I ended up with the truck. It now resides in my shed at home.
I know my enthusiasm to restore this to original would not be there as I would not enjoy driving it in its present length and form. It is my opinion that everything is only original once. Even if I restore it will only be a copy of the original truck. I don’t want to sell it as it has memories back to my early childhood. I could let it sit and continue to rot or I could build something that I will enjoy. It would need a full rebuild, paint and bodywork. I don’t want to go the full hotrod route with independent front end, V8 and other associated changes. I just want a usable small sized truck that I can use in my local area such as going to swap meets or the hardware store and such.
Hopefully this puts some context into what I am trying to achieve with the brakes and the truck.
Thanks for any help that can be offered with the brakes and wheels on this truck.
Steve