I originally pulled both rear drums to find a popping noise when I applied the brakes. The pop would slow with the truck and I could tell it was coming from the rear. The RR drum had some brake fluid and axle lube mixed in it. From what I could tell it had a brake fluid /axle lube smell so I replaced beatings and seals and wheel cylinders on both sides of the axle. Now for some reason I can’t get the brakes to work at all. I’ve bled them probably 20 times and just installed a new master from City Racer. I don’t see any visible leaks and the fluid in the reservoir doesn’t seem to be leaking down so I’m at a loss as to what the crap is going on.