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Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Mar 2005 Posts: 1,636 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 1,636 | Some of the early tail lights had two bulbs in them. One for brake light the other for tail lights.
Use the wire for the brake light bulb. It will serve also as a turn signal light if the turn signal switch is wired properly.
If it is only one bulb then still need the wire to light up the brighter side of the bulb so it also acts as a turn signal light.
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