Also, these doors have a lot of adjustability and it is tough (at least compared to modern cars) to get the alignment perfect the first time. The hinges adjust on the cowl (up/down), and the door side uses floating nut plates (up/down/in/out). Use the old markings where the bolts go through the hinges as a guide and go from there. Just make small adjustments at a time, don't do anything drastic or you will be going in circles. If the hinge pin bushings are worn, you can compensate with adjustments but it would be a good idea to just replace them if needed while the door is off (much better/easier access), especially if you have to put in oversized bushings if the metal in the hinges are oval instead of round due to excessive wear.
Also keep in mind that the better the door itself is adjusted, the less trouble you (should) have with getting the window adjusted. New window sweeps and adding new felt to the upper/inner stoppers makes a big difference with the windows too. These windows can get extremely floppy, and this causes wind noise (especially at speed) and water leaks. The windows in my Regal would pop out at the top on the highway when rolled up, and when the window sweeps really got crispy, they flopped and rattled when rolled down when driving.
