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Question on Underbody Color on Cutlass / 442 Assembled in Framingham

Question on Underbody Color on Cutlass / 442 Assembled in Framingham

Old January 7th, 2018, 08:18 AM
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Question on Underbody Color on Cutlass / 442 Assembled in Framingham

For 1972 vehicles assembled in Framingham, I have the follow questions:

1. Were the underside of the floor pans painted body-color or semi-gloss black?
2. Was the underside of the hood painted body-color or semi-gloss black?

I know from studying an unrestored 1972 Cutlass Supreme assembled in Lansing, both the underbody and the underside of the hood were body color. I am not sure if all the assembly plants followed this strategy. Thanks in advance for your input!
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Old January 7th, 2018, 10:40 AM
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My442 worked at the Framingham plant at some point.

My Arlington built 72 was mostly red oxide primer under w body color overspray.
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Old January 7th, 2018, 02:03 PM
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The bodies (firewall back) with doors and deck lids were dipped in a huge vat of red oxide primer, then sent through an oven to dry. The bodies were then painted.

The bottoms of the cars had overspray on them.

The front clips were painted separately, and them married to the body at the body drop station.

The underside of the hood was painted body color.
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Old January 7th, 2018, 06:03 PM
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Thank you very much!!!
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Old January 7th, 2018, 07:32 PM
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Underside of hoods were black....with some possible body color overspray near the edges.
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Old February 3rd, 2018, 10:40 AM
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My Framingham 1971 CS, all original has Red oxide primer on the underside of the floor pans.
This car only has 36,000 original miles.




Red Oxide, Underside near fuel tank. The whole underside of my 71 CS Framingham car is this red color.


Near Transmission. There is even Red inside the floor support.

Last edited by Miles71; February 5th, 2018 at 07:00 AM. Reason: Added new images.
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Old February 3rd, 2018, 05:47 PM
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Same here - my 71 Supreme had very litlle black on the floor undersides, red oxide is far and away the dominant color. Totally unlike the Lansing cars I have done which are almost all black or body color overspray.
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Old February 4th, 2018, 05:28 PM
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Because my brother's Framingham built '71 442 was undercoated by the dealership, always thought the underside of the floor pans were black. So did the Fremont assembly plant, in addition to the Framingham and Arlington plants, also use the red oxide primer? Did Lansing use the red oxide primer, then spray black paint on the underside of the floor pans?
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Old February 5th, 2018, 07:11 AM
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My 1970 CS is also a Framingham Mass, car. This car had the underside coated with black stuff, most likely by the dealer. The 70, has 135k miles and more rust. There are some indications it may have been undercoated in red. I will try to check get some pictures soon.


1970 Cutlass Supreme, Built in the town of Framingham Massachusetts.
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