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Help identifying a part that fell of my '71

Old 08-19-2018, 05:03 PM
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kggregory33
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Default Help identifying a part that fell of my '71







Hi! After 32 years of dreaming, I am finally brand new to being a corvette owner. Im about 100 miles into being a new owner, and I have my first problem. I took the car out for a 1/2 hr trip, and when I returned I noticed some fluid on the garage floor and a part lying there. Up until this point, it had not leaked anything so the two things are likely related. I am not very knowledgeable with cars, but the fluid doed not appear to be motor oil, though it is slippery and similar in color and texture as motor oil (I compared to a sample from the dipstick). It also had an odor like, for lack of a better expression, you smell at a roller coaster in an amusement park.

Anyways, see below for photos of the part. It was close to center of the car in terms of left to right, and I would say most of the fluid is about a foot to 2 ft back from the center point between the front wheels, and the part was maybe somewhere near where the seats are, though I suppose it is possible it came off as I backed it out.

Can anyone help identify this part so i can have a starting point on how to fix it? Thanks!
Old 08-19-2018, 05:22 PM
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SB64
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Outer seat track support brackets which are riveted to the body. Seat then bolts to it.

RVZIO

Old 08-19-2018, 05:37 PM
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BKbroiler
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RVZIO - amazing response, in 19 minutes
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kggregory33 (08-19-2018)
Old 08-19-2018, 07:00 PM
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bazza77
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differential is not far from where that piece fell off , you might have a front (pinion) or side(output).seal leak .Roller coaster mechanisms would use a heavy gear oil . So does your differential

just be aware that if it has been leaking for some time and still driven , the wind under the car can blow oil away from where it is leaking from . To diagnose it properly ,sometimes you have to get under the car and clean up all the oil that's covering , then take for a short drive and re-check to see .

The part that fell off is held onto the glass floor by two rivets and should have had a bolt that went through one of your seat tracks rear ends and threaded into that part . If it fell it obviously wasn't bolted , so its pretty obvious where to look now . grab the adjusting lever and slide the seat full forward will expose both rear ends of the seat mounting tracks.

Last edited by bazza77; 08-19-2018 at 07:06 PM.
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Old 08-19-2018, 08:02 PM
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kggregory33
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RVZIO and BAZZA77, thank you both so much for your help! I look forward to getting to the point where I can help other members too.
Old 08-19-2018, 08:10 PM
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HeadsU.P.
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As far as the leak? Any veteran C3 owner will recognize that as P.S. Fluid. The only C3 that does not drip, has an empty PS pump.
Old 08-20-2018, 05:09 AM
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SB64
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Hi BK, I guess it was good timing. Takes time to hunt down pictures. Nice to know it's appreciated. Glad to help!

RVZIO
Old 08-20-2018, 05:55 AM
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theandies
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Originally Posted by HeadsU.P.
As far as the leak? Any veteran C3 owner will recognize that as P.S. Fluid. The only C3 that does not drip, has an empty PS pump.
Mine doesn't drip...........it's manual steering so I must have the only C3 that doesn't drip........

BTW - OP, you really need to cut your toe nails.......
Old 08-20-2018, 10:38 AM
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kansas123
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That looks suspiciously like the backing plate used to mount the factory alarm horn on my '72! Crazy!

Old 08-20-2018, 10:39 AM
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CA-Legal-Vette
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Originally Posted by theandies
Mine doesn't drip...........it's manual steering so I must have the only C3 that doesn't drip........

BTW - OP, you really need to cut your toe nails.......
Check your dipstick. Oil must be low if you don’t have an oil pan leak

These things sure do leak a lot of fluids.
Old 08-20-2018, 11:24 AM
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SB64
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Very well could be CA, GM used that small bracket as a backing plate for a few different locations. Good catch!

RVZIO
Old 08-20-2018, 04:48 PM
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theandies
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Originally Posted by CA-Legal-Vette


Check your dipstick. Oil must be low if you don’t have an oil pan leak

These things sure do leak a lot of fluids.
Crate engine with about 20,000 miles on it. It's practically brand new......no leaks.

I'm sure little brackets like that were used all over the place. The good think it's simple to build your own. It appears to be about 1/8 inch thick? You can get plate metal at your local hardware store.

Old 08-21-2018, 09:20 AM
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wer2xu
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I second the alarm horn bracket, look at the scratch on the floor...it fell and was dragged by rear tire. Does your car have a lock that looks like it is where you would open a trunk?
Old 08-21-2018, 11:39 AM
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My inboard rear driver seat anchor plate is no longer connected by the rivets to the floor pan.
Each time I remove the seat, the plate drops to the floor.
I've tried to JB-Weld it to the floor pan underside, but driving the bolt ends up pulling the adhesive away.
So, I've ended up just placing it correctly from the underside by hand, then wedging a piece of 3/4" plywood temporarily between the plate and the left exhaust pipe to hold it there until I drive the bolt.
Just got t remind myself to pull the plywood out before I take off!
Probably should get around to drilling the old rivets out of the plate and re-riveting it to the floor pan - add it to the list!
Old 08-21-2018, 07:22 PM
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scottjamison
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I wanted so badly to open this thread and see a picture of an engine sitting in the middle of the road.................

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