Restoration of my 1955 COMMERCIALE proceeds slowly, even had the engine running briefly . As expected I am having a problem releasing my right side rear brake drum for cylinder restoration. The other side was ok but even the wheel will not turn on the offending side. I cannot budge the adjusters even after wd 40 and the handbrake appears to be off but may not be. Havnt used heat yet but I wondered if a suitable drum puller would help. There are several universal pullers on the market. Has anyone gone down this road and if so what puller did they use Any other suggestion would also be appreciated.