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M37 Restoration Project - Revived

ab705

Active member
53
155
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Location
Maine
I'm still working on getting my electroplating setup put together and waiting for a couple of supply items. In the meantime, I'll keep working on various parts of the M37.

My M37 was never equipped with backup lights, and I don't think I'd ever have occasion to use the small "blackout marker light" at the right rear of the vehicle, so I decided to keep the marker light, but convert it to a backup light. Re-purposing the old blackout marker light would maintain the original outward appearance of the vehicle and make it easier and safer to back up at night. I already had an old beat-up marker light, but I found a marker light in excellent condition on eBay for a decent price.

First, I removed the blackout marker lens parts from the light:

parts-removed-from-nos-blackout-light-door-smaller-image.jpg

Then I cut out a piece of a backup light lens from another vehicle and installed it in the blackout marker light 'door' in place of the above pieces.

inside-of-blackout-light-door-with-new-clear-lens-smaller-image.jpg

front-of-blackout-light-door-with-new-clear-lens-smaller-image.jpg

I cleaned and painted the body of the light Marine Corps green outside and white inside to reflect more light.
I installed a bright white 24V LED lamp, sized so that the end of the lamp is at the approximate center of the new lens.

white-inside-nos-light-with-led-bulb-smaller-image.jpg

Here's the finished backup light, ready to install (although that may not happen for a while yet). Note: There is a piece of 1/16" flat, clear polycarbonate in front of the lens, but it isn't apparent in the photo below. I installed the flat piece to make it easier to seal the lens and to keep the front of the lens clean.

blackout-marker-light-with-clear-lens-smaller-image.jpg

Since the M37 never had a backup light, I'll have to make a minor wiring modification. I suppose I could probably design some kind of gearshift-related linkage for a backup light switch, but I might just end up installing a manually operated switch on the dashboard, in which case the switch would have a pilot light to remind me to turn off the backup light after backing up.
 

M813rc

Well-known member
Steel Soldiers Supporter
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Location
Near Austin, Texas
That is spiffy!

Now I know what I am going to put on the empty bracket for the blackout light on the M715 I'm rebuilding. “Imitation is the sincerest form of flattery”. ;)

I was just wondering if I should leave the bracket empty, which doesn't look aesthetically pleasing, or put something there, and if so, what. The truck has the larger style rear lights with all the b/o lights built in, so a redundant b/o light wasn't the best answer.

Cheers
 
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