The Stovebolt Site Forums The Parking Lot Big Bolts Disc brakes for 1.5, and 2 ton trucks

I'm hoping to do something about the brakes on my '52 GMC 9700 (Canadian built 3 ton) I see the GMC 400 series 3 ton with Clark F466 front axle was mentioned for width at the front of the topic, but didn't see much about it after (also not sure if this would be the same axle as mine or if the Canadian trucks ran something different) Are there big differences from the 2 ton to 3 ton axles?