Technical Juice brake drum help

I just picked up a set of round back spindles and juice brakes. The drums however have the hub cast into them. Can I change to different drums with separate hubs? I’m very new to this and looking for advice. The drums are pretty thin to be turned. I also have 33-34 ford wire wheels I’d like to run.

 

Your present drums are pre-hydraulic.
You’ll need 39 up backing plates and drums to change to a hydraulic system.
Or you could do this……

https://www.jalopyjournal.com/forum/threads/convert-1936-wide-five-to-juice-brakes.682206/

 

They are hydraulic brakes, hose is there cylinder etc. just the drums have the hubs cast into them

 

What's the bolt pattern?

 

They are 5on5.5

 

A couple months ago we decided these types are Canadian. Find some American brakes and you can remove the hubs from the drums. The 40-42 style have the hub inside the drum, and the 45-48 style have the hub outside. Either will need the studs replaced though. The best drums reproed these days use the 40 style hubs and come from Boling Brothers.

 

Thanks very much. I had a heck of a time finding these as it was, I might try and find some f1 brakes to use on this setup and if not I’ll call bowling brothers. I figured it must have been oddball.