I didn't want to mail-order a set of door hinge pins for our '53 Chevy 2-door and wait for them to get lost or sent to the wrong address? I also didn't want to shave down some bolts and still have shitty sagging doors after all that work. I spent some time looking for some locally, but failed. I busted out the dial calipers and found the diameter of the stock hinge pins (.340) and they measured out to be about 2.5" in length. I ran down to Autozone and looked in their HELP! section for a pair of hinge pins with the same diameter and atleast the same length. They had quite a few very long pieces in the right diameter but only sold them individually and for about $7 each! Well, I stumbled upon HELP! part number 38381. It's a kit for a Chrysler of some sort that comes with 3 pins, and 6 bushings. 2 of the pins were the right diameter, 1 of which was a little long. The other was a smaller pin and was thrown in the misc bucket I keep around. I popped the stock plastic bushings out of the hinges, and the replacement brass bushings happened to tap right into the hinges nice and tight, like they should be. Then I assembled the hinges together and knocked the pins through them. They fit nice, and operate smoothly. Remember, I said one of the pins was the right length, and one was a little long. Out came the cut-off wheel, trimmed to the proper length, then smoothed out. I put the doors back on and they open & close very smooth, with no sagging. Anyhow, the hinge pin kit was about $8, and enough to do 1 door, so you'll need two to do both doors. Again, it's HELP! part number 38381. Not sure if it works on 49-52's, 55-57's, or BOPs of the same vintage, but it might be worth a shot. I also heard the rear doors on 4-door cars have a different length, but might be the same diameter. Anyhow, hope it helps.