Author Topic: Survey: What color primer was originally on the bottom of your car?  (Read 807 times)

Grand73Am

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What color primer was original on the bottom of your car? And what year is your car and what assembly plant was it built in?

There's some debate as to whether the Van Nuys plant used a different color primer than the Norwood plant. So, hopefully many of you will reply, so we can see how the colors were for the plants and the years. Thanks!

I'll start: I have 4 79's, 2 Norwood and 2 Van Nuys. All have black primer underneath.
Steve F.

roadking77

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #1 on: November 26, 2018, 08:47:42 AM »
I have a Norwood 77, red primer, 79 (I think its Norwood) black. I was under the impression that red primer was used up to 1979 when they switched to black primer.
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Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #2 on: November 26, 2018, 09:01:55 AM »
I was also thinking that 78 and older were red, and 79-81 black, regardless of the plant they were built in. But someone somewhere else claims the plant makes a difference in some years. So, I wanted to survey our members to see if we can see a pattern and determine the whole story is. Thanks for your contribution!
Steve F.

Warren Seale

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #3 on: November 26, 2018, 11:23:51 AM »
Norwood 79, black.
79 T/A,WS6,403,A3
96 T/A,WS6(#1344),M6
72 442,W30,A3
96 Vette Grand Sport convertible,F45,LT4,M6
06 Vette convertible,Z51,M6

NOT A TA

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #4 on: November 26, 2018, 12:07:10 PM »
'70 Norwood, red oxide
John Paige
Lab-14.com

Re: Survey: What color primer was originally on the bottom of your car?
« Reply #4 on: November 26, 2018, 12:07:10 PM »

79GoldnTan

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #5 on: November 26, 2018, 06:56:21 PM »
79 norwood, black what isn't covered with some kind of undercoating.
79 solar gold    
461.   Factory 4 speed
PTFB SFC
PTFB 1LE
3.08 rear  for now
Lots O Fun

Jack

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #6 on: November 26, 2018, 07:00:35 PM »
Both 71 and 72 Norwood, red oxide.




Regards, Jack

Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #7 on: November 27, 2018, 08:59:15 AM »
Thanks for the replies so far.

Curious that there's no Van Nuys cars reporting yet  :smile: .
Steve F.

81Blackbird

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #8 on: November 27, 2018, 09:24:07 AM »
'81  black Van Nuys

nigel

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #9 on: November 27, 2018, 02:27:53 PM »
80's Black Van Nuys.

Aus78Formula

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #10 on: November 27, 2018, 03:25:50 PM »
Have never seen anything other than what was reported. 70-78 red, 79-81 black. When was the change, not sure.

March '78 Van Nuys red primer, tinged brown. Under the body, throughout the body, cabin and trunk.
« Last Edit: November 27, 2018, 10:02:35 PM by Aus78Formula »

mz-formula

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #11 on: November 27, 2018, 06:10:35 PM »
75 formula and 75 trans am, both red oxide, both Norwood cars.

Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #12 on: November 29, 2018, 02:22:45 PM »
Have never seen anything other than what was reported. 70-78 red, 79-81 black. When was the change, not sure.

March '78 Van Nuys red primer, tinged brown. Under the body, throughout the body, cabin and trunk.

I used to think the same as you, that the primer color difference only depended on the year. I thought that 70-78 is red/brown, regardless of assembly plant, and then they all went to black from 79-81. But, somebody else was claiming that the Van Nuys plant cars had black oxide primer and the Norwood cars had the red/brown primer, so it depended on the plant. This claim was really made about the 70-78's, since we know that all 79-81's are black. I questioned whether all 70-78 Van Nuys cars were black though, since I didn't think they were.

So far, from this survey I'm taking, I've counted 4 78 Van Nuys cars, including yours, having the red/brown. So, that shows that not all 70-78 Van Nuys were black, since 4 Van Nuys 78's with red have been reported (I also asked the question at PY). But, I haven't gotten any replies from 70-77 Van Nuys cars to see how many of them were black or red. So, still waiting on them.
Steve F.

Boosted78TA

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #13 on: November 29, 2018, 05:24:14 PM »
1978 TA (Built in october 77) Van nuys Ca,  Brown color randomly and thinly sprayed on everything under the car, not red oxide or black. There was a lot of undercoating slopped on all over the place.  My primer under the original paint color of goldenrod yellow was a brown color like the picture Aus78Formulas picture below.

This is the cleaned up and coated surface after rust converter.



this is under the car before applying any treatment


This is the trans tunnel which you can see is brown.


« Last Edit: November 30, 2018, 09:56:26 AM by Boosted78TA »
Litchfield Park, AZ

Aus78Formula

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #14 on: November 29, 2018, 08:09:37 PM »
March '78 Van Nuys.
This is the interior which is the same as the undersides. The Hardware red/orange oxide primer is there as a comparison.
My under floor panels, above fuel tank etc is same as Boosted's above, minus the deadener coating.

Firebird brown primer interior (2) by Aus78Formula, on Flickr

Firebird brown primer interior (1) by Aus78Formula, on Flickr

Firebird brown primer interior (3) by Aus78Formula, on Flickr

Firebird brown primer interior (4) by Aus78Formula, on Flickr
« Last Edit: November 30, 2018, 06:36:28 PM by Aus78Formula »

Re: Survey: What color primer was originally on the bottom of your car?
« Reply #14 on: November 29, 2018, 08:09:37 PM »



428Bird

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #15 on: November 30, 2018, 04:50:35 PM »
80 TTA, Norwood, Black
80 Esprit, Norwood, Black
1979 TA, Norwood, Black
1979 Formula, Norwood, Black
1977 TA, Norwood, Red Oxide
1975 TA, Norwood, Red Oxide

Britt
1975 Trans Am turned into a mix-year 73'ish Formula. 4" Stroked 400, Edelbrock Heads, Comp Cams XR-288-HR, Harland Sharpe 1.5's, Peformer intake with 800 Q-Jet. Hooker Super comps through 2.5" exhaust and Ultraflows. Super T-10 with 3.73's

Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #16 on: November 30, 2018, 05:11:28 PM »
Thanks Britt!
Steve F.

whiskeychick

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #17 on: December 01, 2018, 07:23:52 PM »
78 Norwood red oxide
77 Norwood red oxide
80 Norwood black
1987 Trans am GTA - 305 5spd, custom paint, slightly modded
1978 Trans am T/A 6.6 - 400 auto, gold, resto started

Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #18 on: December 01, 2018, 07:26:32 PM »
Thanks!
Steve F.

Jur5664

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #19 on: December 04, 2018, 01:12:36 PM »
I have a Norwood 77, red primer,
I also have a Norwood,  3rd week of  march'77 Formula 400, I would rather say red/orange  :lol:
Mine arrived in France in August 1977, and was first owned in august 1977.
I got it since 1989  :cool:

Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #20 on: December 05, 2018, 04:58:59 PM »
Thanks!
Steve F.

Pontiac_SE

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #21 on: December 16, 2018, 04:22:16 AM »
My -77 is built in April-77 and have red oxide.
Norwood built.
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Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #22 on: December 16, 2018, 09:22:00 AM »
Thanks!
Steve F.

Doright

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #23 on: January 12, 2019, 09:54:03 AM »
I have a 70 Firebird I am working on its bottom side is original and its Black? I have no idea what Plant built it.
I took some pics of original undercoating and removed the undercoating and Its Black!

I do know its on of the first 800 hundred or so that were built from the Vin number if I am was interpreting the sequence number correctly?
I have not bothered to break down all the numbers on it its just a plain Jane Esprit low option basic firebird I am building a custom TA clone out of it. 
I will get some pics


















« Last Edit: January 12, 2019, 07:58:35 PM by Doright »
Dennis Barnett 
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Doright

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #24 on: January 17, 2019, 02:47:00 AM »
Bump
Dennis Barnett 
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Grand73Am

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #25 on: January 17, 2019, 05:51:35 PM »
You need to down-size your pics, since your post is nearly unviewable as it is. But I was able to see your VIN. The L indicates Los Angeles, so yours would have been from the Van Nuys plant. From this research I was doing, it appears that the early 70's Van Nuys cars had black primer on the bottom. So, that seem right for your car.
Steve F.

FormTA

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Re: Survey: What color primer was originally on the bottom of your car?
« Reply #26 on: January 17, 2019, 05:55:53 PM »
Two 79 Van Nuys, Black. T/A And a Formula.
79 Trans am 301 (work in progress) LS swap n progress
79 Formula 301 (Work in progress)
67 RS Camaro (Work in progress)
See the recurring theme???

Re: Survey: What color primer was originally on the bottom of your car?
« Reply #26 on: January 17, 2019, 05:55:53 PM »
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