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Old Apr 19, 2007 | 06:10 AM
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Default C3 Frame

I just buy a Corvette 1980 and I want to know how I can check if the frame is good or not... Without lifting the car.
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Old Apr 19, 2007 | 06:32 AM
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If you are referring to frame rot, a few spots to check on the Late Model C3's is the #2 and #4 body mounts, and the birdcage. The #2 body mount is located inside the driver's and passenger's kick panels. Remove the kick panels and poke around with a screwdriver to check for soft metal. Then crawl under the car and check on top of the frame in the same location. The drain holes in this area from the birdcage get clogged with debris and trap the water, causing rust.
Next check the # 4 body mount, all the way in the rear in back of the rear tire. It sets on the frame and is next to the gas tank. This mount will rot around the bushing and sometimes as bad as the entire mount will rot off.
Finally, check the birdcage around the front windshield frame and base.
Good Luck.
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Old Apr 19, 2007 | 07:00 AM
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Depressing site.
http://geocities.com/dilbertopotimus/index.html
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Old Apr 19, 2007 | 07:51 AM
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OUCH! That frame looks as if it was buried at the bottom of the Atlantic Ocean for the past 20 years.
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Old Apr 19, 2007 | 09:16 AM
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Originally Posted by pat80
I just buy a Corvette 1980 and I want to know how I can check if the frame is good or not... Without lifting the car.

Crawl under and take a look.
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Old Apr 19, 2007 | 09:35 AM
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Originally Posted by 72350auto
yeah, and it looks like 2 of the pictures in that site is from my car...
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Old Apr 19, 2007 | 09:42 AM
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Originally Posted by 72350auto
LOL, this is a very good tool one of the guys is developing for helping out new buyers. The bad thing is my car is in there TWICE!
My passenger floor pan and the pass side #2 mount from under the rocker channel is a Huge hole.
Some more examples and suggested fixes or a link to other guys fixes would be great
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