For anyone restoring a 70-72 Buick here is what I have found over the years. I have been going through things and I believe I have the three types that were used. Far left is 70 type. I guess it could have been used in earlier years? It is easily identified by the coat hangar triangle on it. It is galvanized color. Middle is early-mid 71. It was black in color and has a fold over lip on top to hold the plate. It has a space invader design on it. It was replaced sometime during 71 with the third type far right that is galvanized but has no lip on top but still has the space invader design. It carried over to 72. Hope this helps anyone find the correct plate. I believe this information to be true to the best of my knowledge. Any resemblance of this to any other parts is purely coincidental.
hey dave i was just talking to duane about this very thread last night,unfortunately my assembly manual is crap and i couldnt see when the revision took place.he thinks march of 71.when i look at the 71 manual it clearly shows the black painted version with the lip and gives a part number of 409179.the 72 assembly manual shows an illustration without the upper lip and gives a part number of 410259.i have both types.have you ever seen the part number stamped into it?
i think its also safe to say gm wouldnt have thrown away good parts, so they would have used up what they had regardless when the revision was dated...........just my assumption
i have what appears to be a an early one(painted black).,however the part number says gm 3813608...can anyone decipher?...the one on my car that was on it when i bought it looks the same and doesnt have a part number on it?????
