Mustang Fastback A Pillar Trim Arrives 71 72 73 Pillar Post. Quite possibly one of the hardest parts to find for the interior of the 71-73 Mustang is the “A” Pillar posts. These are not re-manufactured as of yet. I am very happy to say that my pair has finally arrived! I purchased them from west coast classic cougar. I was very surprised to see that they had them in stock as a used part. They arrived packaged very nicely. Although these are the correct pillar posts for my mustang, they are a used item. This means that they have a bit of wear & tear that needs to be addressed. I will be removing the old sticky tar adhesive that is currently on them and applying a fresh coat of black paint. Stay tuned for the update on these bad boys! I am posting my invoice for what I paid for them and also placing the links of where to purchase them. Hope this helps a few others with this issue.
Passenger Side A Pillar Trim: Used
On convertibles, the top portion is trimmed to allow it to slide under the sun visor bracket. The engineering number imprinted on the back is D1ZB-6503599-AWD for 1971-1972 and D3ZB-6503599-AWD for 1973.
Drivers Side A Pillar Trim: Used
On convertibles, the top portion is trimmed to allow it to slide under the sun visor bracket. D1ZB-6503598-AWD