New to the forum new ‘76 sierra grande owner, what is this button?

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klotte

Junior Member
Joined
Oct 12, 2022
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Location
Denver
First Name
Ky
Truck Year
76
Truck Model
Sierra Grande
Engine Size
350
Hi I purchased a 76 quarter ton sierra grande a few months ago, as you can see the previous owner put some modification into it. Any idea what this button on the floor near the parking brake does? It just depresses, no click.
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75gmck25

Full Access Member
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Oct 13, 2016
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Location
Northern Virginia
First Name
Bruce
Truck Year
1975
Truck Model
K25 Camper Special TH350 NP203
Engine Size
5.7
It’s definitely the dimmer switch, and it’s stock.

But for passengers you could come up with any explanation.
- ejection seat button for unpleasant passenger
- NOS controller for your weekend drag racing
- air suspension up/down for your low rider
- ??
 

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