I finnally found original fillers for the rear of my 76 from a gentleman in Canada who had a junk yard of only cadillacs. He was very honest about the condition of them and quite fair in his price. I had them painted along with the rest of the car with SPIES HECKER paint finish about 14 years ago and these fillers are still in great shape with no cracks or distortions whatsoever. I have heard many stories about these ABS fillers just like the ones stated above. They never fit properly and need a lot to be desired. I suggest if you can find the original ones you would be better off even though they could have a problem holding on to the paint and might be a bit brittle after being around for so long. GOOD LUCK!