Door seals cause door problems.

[homemade87]

When I did my resto I used oem gm seals . The doors shut ok but I have to lean on it when I go to close it . If I just push it shut with light pressure it will not close all the way . As time goes on I guess the seal had compressed some and is closing easier . It makes for a good seal .

I guess I have gotten used to the modern day doors where they close easy with out much effort on my 06.

Also , dont forget about the door strike bushing . If it breaks and falls out it makes thinks worse .