Thanks guys for the information. I just checked my car and found the upper and lower holes in the door pillars so at one time, my car had the gaskets. I guess I'll try to cobble something together.
Just to be sure, in the absence of the pillar gaskets, the door gaskets themselves completely encircle the door frame, correct? And the gasket starts laying against the door frame, works down, and ends with the gasket overlapping the beginning by 3 or 4 inches, right? I've only got one shot with this so I want to be sure I get it right!
Also, has anyone installed the 46-18 Steele Rubber gasket as the trunk gasket in a J? In a previous post, it was mentioned that it can be used. If anyone did use it, which way did you install it?