Wear And Tear
Years and years of use and abuse can cause all these old door parts to become corroded and fail. After tearing apart the old assembly and inspecting it further, here's what we found:
 The return springs on the...  The return springs on the handle assemblies come up broken on just about every truck we have restored. It is one of the biggest rattle producers on these trucks. |  No lube equals flat rollers....  No lube equals flat rollers. You can see why the window regulator had to be replaced in this truck. We had a few flat rollers and one that was completely missing. |  After an improper door adjustment,...  After an improper door adjustment, you can see what years of opening and closing the door did to this latch assembly. |
Step 2: The Assembly
Now that the dirty work of tearing the door apart is done, the fun part begins! Inspect all the new parts to ensure nothing is missing and you're good to go.
 1. Make sure to install the...  1. Make sure to install the gaskets before you bolt up the handle. |  2. The lock assemblies don't...  2. The lock assemblies don't come with the arm, so you will have to pop the clip off and transfer it to the new tumbler. |  3. The best way to transfer...  3. The best way to transfer the rods from the latch and handle setup is to lay them on the bench and move the rods one at a time. |
 4. Once the rods are on, install...  4. Once the rods are on, install the latch and handle with the new screws. |  5. Now snake in the window...  5. Now snake in the window regulator and make sure to slide the roller into the channel welded in the door. |  6. Once you have that in the...  6. Once you have that in the channel, you can install the new screws. |
 7. Roll up the window and...  7. Roll up the window and install the glass just like it came out. Don't forget to apply a new coat of grease in the roller channels. |  8a. The new vent window assembly...  8a. The new vent window assembly installs just like the original one came out. Rotate the assembly, so the lower mounting tab is facing up. Once you have the tab inside the door, you can rotate the assembly and slide it forward into place and install the new screws. | 
8b. |
 |  9. The window felt is next....  9. The window felt is next. Starting at the front, butt the end of the felt against the vent window. Push it in the door frame, and make sure you have the little slots lined up in the corner of the door. |  10a. Drop the other end of...  10a. Drop the other end of the felt down into the door, then snap in the upper area completely, so you can roll up the window. At this point, rolling up the window will make sure the channel felt is properly seated. |
10b. |  11. Grab the original lower...  11. Grab the original lower channel, and slide it up toward the top of the door, until you line up the screw holes. It will be a tight fit, but it will go. |  12. Now install the lower...  12. Now install the lower screws, and finish snapping the felt into the lower channel. |
 13. In preparation for the...  13. In preparation for the new door panel, we screwed on the chrome channel. All the necessary holes are in the Goodmark door, so there was no need to drill for these screws. |  14. These thick plastic spacers...  14. These thick plastic spacers are easier to install with the door panel off, so you can get behind and force them to clip on. |  15. The new door panel slips...  15. The new door panel slips up into the chrome trim previously installed. |
 16. The screws we got from...  16. The screws we got from Brothers thread right into the nut plates welded to the Goodmark door. |  17. Just like the door panel...  17. Just like the door panel screws, the armrest hardware went right in. Man, we love installing all new stuff. |  18. Use a pair of needle-nose...  18. Use a pair of needle-nose pliers to install the window crank clips. |
 19. Slide the handle over...  19. Slide the handle over the post, and push until you hear the clip click. |  20. Now snap in the felts...  20. Now snap in the felts and squeegees to complete the rebuild. | |
The Final Word
If you have never taken on the task of building/rebuilding a door, don't be scared. With today's great aftermarket parts and the fact that it takes very few tools, you are just a couple of hours away from solid, rattle-free doors.