I’m far from ours currently, but the light closest to the frame in the second photo strike a bell. I believe I have them amongst the array of others hanging down from the bed…

Excellent info sir. Thank you. My bracket is the same. I suspected some form of duo-light fixture. This is very helpful. I had forgotten that once the bed goes back on the frame, there will be more opportunities for good rear lighting beyond the lone bracket. Without the bed, it seems a tad bit spare back there.
Thank you again for your help.
I…[Read more]

Sorry, the first photo shows a marker light that is on both sides of the deck. The double tail lights are on the drivers side, on the frame under the deck. The bracket and the back brace seem to be pretty standard tail light brackets. Maybe we’ll all see if we can find something similar that would be real accurate.

Here’s what I have on the back of mine, Just on the drivers side.

1946 – 1947 – 1948 DIAMOND T TRUCKS STEWART WARNER GAUGE PARTS NUMBERS:
AMPS: 440031 ; TEMPERATURE: 442042 ; GAS: 441015 ; OIL : 444045 ; SPEEDOMETER: 529 – CD.
DIAMOND T TRUCKS THAT USE THE THE ABOVE LISTED STEWART WARNER GAUGE PART NUMBERS:
1947 MODELS 201,201C,306.
1946 – 1947 MODELS 404,404SC.
1946 – 1947 MODELS 509,509C.
1946 – 1947 MODEL…[Read more]