I'm a new member so please go easy on me. I have a 1956 100 Le Mans and although my brakes work fine, as in stopping the car effectively, I have another strange issue. When the car is cold, it rolls perfectly so I can push it in my garage without any assistance. However after I've driven the car for just a few miles, when I let off the gas I can feel the brakes gripping almost like a regenerative braking system in a modern car. Then when I get back to my house and park the car in the garage, I can't push it at all in neutral. However when I come back in about an hour and the car has cooled off, it rolls freely again. None of the drum brakes seem excessively hot and I don't know what to do. I do have a jack so I should probably drive it a couple of miles, then jack it up and see which wheels are locked up, sorry I just thought of that in the middle of composing this. Regardless does anybody have any experience with a similar issue or any ideas on what might be causing this?