Albeit I'm new here, I am a bit lost on this thread. Is it about hub bearings or disc brakes? Front or Rear? 3600 or 3800 series? ...
It's about finding a good way to run disc brakes on the front of an Advance Design 1 ton (3800).
Which lead to finding a good and affordable source of front wheel bearings if I were to keep the original axle, spindles, and hubs.
So about both disc brakes and front wheel bearings.
Nothing to do with the rear.
Much of the info will work for 3/4 tons,too but that's not my focus.
Grigg