None of those. It’s this. Which I’m beginning to think is some home made or aftermarket things long since vanished. But enough guys know about them and have them it was more than just one guy at some point and works. This is not mine.This filler (pair) @DynaBro ?
Filler identification 13-64-22 which is p/n 2962 544-5 in the pictorial below.
Also, there are quantity 8 RETAINER, Bumper Filler which is p/n 2898 909 shown in the p/n listing below.
View attachment 1789825View attachment 1789826