To get the drums off you need the proper puller.I have one that I bought for the 57 and 62.It attaches to the studs and tightens on the big stud that the nut is on.Then there is a handle that you smack with a good sized hammer and they pop off the key way.The 61 we had some moron pressed the drums off the stub.They were so bad that the pedal went up and down when you hit the brakes.Local yard had a set that I bought for it and fixed that problem.I bought my puller from Ebay.Cost me like 35 bucks and was an old I believe Mac.Ive done tons of the rears and never had one that wouldnt come off.My kids 62s were the worst.Took me about and hour to get them off.Rocky