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C10_Blackie

C10_Blackie

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Seattle, WA
First Name
Rob
Truck Year
1981
Truck Model
C10
Engine Size
350
I found this inside the driver’s door when I was replacing the window seals on my 1981 C10 Silverado (crank windows, manual locks). There is no rust at all in the door itself and I can see that the doors have older aftermarket interior panels on them so I am not the first person in there. I can’t see anything like it on the other door so I’m guessing this is a random piece of junk somebody left in there or was maybe part of the OEM panel.

Does this look familiar to anybody? It’s going to bug me until I figure it out. Thanks.
 

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dsteelejr

dsteelejr

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Hudson, WY
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David
Truck Year
1973, 1980
Truck Model
Cheyenne super C20 camper special, Sierra K25
Engine Size
350, 454
I have the same part from my ‘80 K25, but in better condition. I don’t remember where it came from or what it does. It’s been in my spare / unknown parts pile for a long time. Didn’t want to throw it away in case I need it someday. Would be great if someone could shine some light on this.
 
legopnuematic

legopnuematic

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Location
MO
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Spencer
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1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
Sport mirror reinforcement bracket

You must be registered for see images attach
 
legopnuematic

legopnuematic

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Location
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Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
Your truck (one in your avatar I’m assuming) has dumbo mirrors right? This is the bracket used for dumbo mirrors:
You must be registered for see images attach
 
C10_Blackie

C10_Blackie

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Location
Seattle, WA
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Rob
Truck Year
1981
Truck Model
C10
Engine Size
350
legopnuematic said:
Your truck (one in your avatar I’m assuming) has dumbo mirrors right? This is the bracket used for dumbo mirrors:
You must be registered for see images attach
Click to expand...
Thanks. I was just figuring that out. So I guess that this truck had sport mirrors on it at one point and then a later owner swapped in the dumbo mirrors. When I replace the panels I’ll make sure the dumbo brackets are there. Thanks for the info: you added the last piece of the puzzle.

I didn’t see sport mirrors listed as an option on this truck - were they a standard part of the Silverado package or something like that?
 
C10_Blackie

C10_Blackie

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Seattle, WA
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Rob
Truck Year
1981
Truck Model
C10
Engine Size
350
dsteelejr said:
I have the same part from my ‘80 K25, but in better condition. I don’t remember where it came from or what it does. It’s been in my spare / unknown parts pile for a long time. Didn’t want to throw it away in case I need it someday. Would be great if someone could shine some light on this.
Click to expand...
So we are in the same boat. Turns out it was a bracket for the sport mirrors, but we both have dumbo mirrors on our trucks now. So mystery solved and no action needed.
 
legopnuematic

legopnuematic

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Location
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Spencer
Truck Year
1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
Truck Model
Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
Engine Size
225/6, 350 c.i., 350 c.i., 5.9l Cummins
The 1981 Truck brochure does not seem to show mirrors directly related to trim level.

With that said I would think most Silverado's probably had the dumbo mirrors in the 80's and most trucks in general.

The 85 Silverado I parted out had them:
You must be registered for see images attach
 
bucket

bucket

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K5 thru K30
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C10_Blackie said:
Thanks. I was just figuring that out. So I guess that this truck had sport mirrors on it at one point and then a later owner swapped in the dumbo mirrors. When I replace the panels I’ll make sure the dumbo brackets are there. Thanks for the info: you added the last piece of the puzzle.

I didn’t see sport mirrors listed as an option on this truck - were they a standard part of the Silverado package or something like that?
Click to expand...

The little "sport" mirrors were simply the standard mirrors.
 
rwjtexas

rwjtexas

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Beaumont, Texas
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Rob
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1985
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K5
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6.2L Diesel
Note ...Just a heads up ... the bracket used for the Larger Mirrors, the left and Right side are different and should not be crossed with one another ... It will make the Vent window nearly impossible to install properly if you use the support on the incorrect side. This bracket connects the outer shell to the inner shell.
 
squaredeal91

squaredeal91

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Greg bush
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1991 SB
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5.9 Cummins 12 valve
legopnuematic said:
Your truck (one in your avatar I’m assuming) has dumbo mirrors right? This is the bracket used for dumbo mirrors:
You must be registered for see images attach
Click to expand...
I've seen these and never knew!
 
C10_Blackie

C10_Blackie

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Joined
Jan 2, 2024
Posts
64
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138
Location
Seattle, WA
First Name
Rob
Truck Year
1981
Truck Model
C10
Engine Size
350
rwjtexas said:
Note ...Just a heads up ... the bracket used for the Larger Mirrors, the left and Right side are different and should not be crossed with one another ... It will make the Vent window nearly impossible to install properly if you use the support on the incorrect side. This bracket connects the outer shell to the inner shell.
Click to expand...
Good reminder. If I need brackets I’ll have to be extra careful since I at least need to rebuild the vent windows.
 
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