CALIPER REBUILDING QUESTION

I wouldn’t rebuild them until you are ready to use them. A few years ago I was helping a buddy work on a Dart Swinger, well it needed the calipers rebuild, he had a “fresh” rebuild set sitting on the shelf. That rebuild was about 10 years prior. We get the car running, we went for a short shake down, came back to the shop, then another buddy took it for a shake down and then I took it for a shake down, when I got back to the shop, buddy #2 egged me on, so I stood on the brakes and started smoking the tires on the shop floor, right as I’m at the top of 1st (it’s a 340/727) the peddle hit the floor, I let off the gas and slammed it into park. Was a few seconds from sending that dart out the back wall……

A puck seal blew out.

Long story short, the rubber in the seals breaks down…