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How To Identify An OEM Rear Spoiler?
#1
So, I have an old spoiler that may be an old original. My question is how to tell? It has not sagged. Its been repainted. Has a small section where it looks like the seam between the top and bottom separated. Are there any old repros that were assembled like the oem?
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#2
(03-20-2019, 12:31 AM)detritusmaximus Wrote: So, I have an old spoiler that may be an old original. My question is how to tell? It has not sagged. Its been repainted. Has a small section where it looks like the seam between the top and bottom separated. Are there any old repros that were assembled like the oem?

Many get the placement wrong ... placing it right in the middle of the trunk lid ... some have the mounting pillars slightly inboard so the spoiler has a slight bow in it ... 
However, there are some you cant tell if it is aftermarket because they are so precisely fitted

[Image: siggy.jpg]

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#3
If it is a Ford spoiler it will have the part numbers cast into the pedestals on the end that mounts to the trunk. The originals are two piece and known to come apart.
You also have to be careful the 70 looks the same but spacing is different for the mounts. Note in the picture where the nuts are located on my original Mach 1. If you put a 70 the nuts fall in the form of the reinforcement and look like crap.
The pics are a factory mounted spoiler and factory paint. It has sort of a texture to it not smooth same a hood black.

[Image: DSC-0955.jpg]

[Image: DSC-0972.jpg]


When a man is in the woods and talks and no women are there is he still wrong??
Tongue
David
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#4
David are the spoiler nuts body color ?
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#5
Well, the spoiler is not mounted and has no pedestals. I got it with some other parts a few years ago. The spacing of the pedestal s is 33". I did pick up a set of repro pedestals, CPC brand, I think. I don't intend to use it on my car, but if I sell it, there is a big difference between own and repro.
Since it appears to have been repainted, Any texture may have been sanded smooth.

The big question to me is, are any repros may in two pieces and glued together like the originals?
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#6
The aftermarket one that NPD sell is quite good,  but the leading (Fatter) edge is flat whereas the OEM one is rounded. The NPD one is ABS plastic, lighter and one piece I think and if I remember from the one I had on mine before I found an OEM one. It's quite good for a repop. The 71-73 rear spoiler is 2" wider than the 70, learned that on here just recently. Here is the proper placement of the rear deck of a fastback, the only one that had the spoiler.


Attached Files
.jpg   SpoilerLocation2.jpg (Size: 93.52 KB / Downloads: 137)

I learn something new every day!
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#7
So, I finally got some pics of this thing....as you can see in the pedestal mounting area, it used to be blue at some point. The collection of parts it was with came from a metallic blue 71-73.
I am curious about the sharpness of the recesses. In the pics of supposedly oem spoilers I've seen, the recesses have a more rounded edges. Were there variations? Also, there appears to be some fiberglass cloth texture in some of the paint. How clean and consistent were the oem spoilers? I suspect that if this is oem, it has had some attempts at repair in the past. Or maybe it's just a rough older repro?


Attached Files Thumbnail(s)
   
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#8
(03-20-2019, 01:12 PM)OMS Wrote: David are the spoiler nuts body color ?

No they are zinc with chromate just getting old like me. All of the bolts have changed color. could have them redone locally but leaving original.
The trunk bolts are painted since it was mounted when painted also the rear valance screws were painted it was also mounted.


When a man is in the woods and talks and no women are there is he still wrong??
Tongue
David
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#9
Okay, I picked up another spoiler today and it is shedding more light on the subject. So the one I've posted pics of so far I am pretty sure is a repro. For one thing it seems a little lighter in weight. For another, it seems fatter and the end downturns are more rounded, less sharp. The recesses for the pedestals is sharper on the edges.
The spoiler I picked up today is heavier and has more defined ends and seems thinner on the leading edge, less round. Plus, I can tell it is fiberglass, I can see the fibers in the edges. The recesses have a bit of a radius to them as well. It looks more like a designed, finished piece. However, I am not certain that this piece is OEM, it's just different from the other one, but looks more like the spoilers on Ebay that are claimed to be OEM. The pedestals on this spoiler have flat bottoms and some of the mounting screws looked more Home Depot, so I assume those are replacements.


They've been making the replacements long enough that you can't just go by apparent age.
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#10
(03-20-2019, 01:12 PM)OMS Wrote: David are the spoiler nuts body color ?

I have the opposite question...
I have restored the deck lid and left the holes for the sake of keeping the spoiler option. Even restored the spoiler, 
but chances I put it back on are near zero as I'd love to keep the roof line of the car pure.

So, I'm after plugs for the 4 holes... Do you have something that could do the job nicely?

EDIT:
Thinking of something like this (+ some kind of thin gasket/sealant)
https://www.digikey.com/product-detail/e...ND/3659881

73 modified Grandé 351C. Almost done. 
71 429CJ. In progress
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