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Spare tire back up light mount

Discussion in 'Builds and Fabricators Forum' started by schardein, Jul 4, 2007.

  1. schardein

    schardein Low Range Therapy

    So here we go. Why spend time on a good back up light? I have went through a lot of money over the years on driving/fog lights. I always seem to bust them on the trail (even several sets in on-road accidents!). To me it makes more sense to upgrade your headlights, the mounts are already there, the wiring is mostly there (unless you add relays, but the headlight switch is there), they are easy to aim, and don't get busted up on the trail (usually!!). But in my experience, a good back up light is worth its weight in gold. Back in the day I would get calls at all hours of the night to come pull people out with my Blazer. I good backup light makes night recovery so much easier, and safer.

    I have a Hella back up light. It has two 55 watt bulbs in one housing. It spreads a good flood type pattern, it is built well. But it was mounted low on the bumper. Not good!

    I have seen backup mounts similar to what I built for $50. I spent almost that, but more on that later.

    So I have the light. Need some steel. I went to the local metal supply (not so local for me but...) and got a foot and a half of 3/4 and 1" steel square tube and some 1/8" thick by 1" wide strap. Should be enough!

    I already had a light piece of steel for the base. It warped when I welded to it, but not enough to matter. Next time I would use something a little heavier. I drilled the base to fit the bolt pattern on my swing out spare tire carrier.

    Then I test fit the socket base. I decided to make it as short as possible to keep the light tucked in. In the end I settled on a 1.5" piece! Glad I spent all that money on a foot and a half!!

    Then I cut the insert, about 2". I made the actual light mount "U" shaped piece out of the 1/8" strap. The original was really rusted. Careful measurements and it was bent in my little 4" table vise, cut, drilled, and grindeded (ground, I know, but that sounds electrical) then welded to the insert. I reused the original bolt, as it had a little tab on the head end that prevents it from spinning. I cut a small notch in one hole for this with a dremel and almost worn out (small) cut off wheel.

    The socket had a little raised wire bead on the inside where it was welded when it was made. This prevented the insert from sliding in smoothly, I had to file it down with a rat tail file.

    Then the socket was welded to the base. Like I said the base warped but not a lot. Then I put in the insert and drilled a hole thru the whole shebang for a pin. I made a pin out of some 1/8" round stainless stock I had from a previous project. Simply bend, cut, bevel the ends on the grinder, and wire wheel smooth.

    Couple coats of paint and it's done. The pin is a little further back than it should be, didn't account for how thick the aluminum wheel is. The pin has no locking mechanism, I am relying on the somewhat tight fit and gravity to keep it in. If it ever got lost, the insert fits the base tight enough to keep the light from falling out anyway, at least for a while! One of these days I may locate a trailer hitch pin with the built on wire loop to secure it. Length is a factor though since I didn't account for the thickness of the wheel, the pin can't be to long (hint hint)

    I wired the light using old two contact connectors from an old wire harness. I used two pairs of these.

    Since I have a YJ tub on my CJ7, there are wires coming out of the tailgate for the third brake light. These were used as a start point (although heavier gauge wire was run). Right after it comes out of the tailgate, I used one of the connectors, this allows it to "pop" apart when I open the tire mount. The second is up by the light, it has a locking tab built on it to keep it together. Of course that one is there if I ever need to remove the light to get the spare tire off.

    So all in all I spent about $35, but I got a LOT more square tube than I needed. Note to self, next time, design, then buy materials. Course you gotta have a welder!

    Tools used:
    Welder (I spoiled myself and bought a good miller mig)
    recip saw but a hacksaw would work
    4" bench vise
    6" grinder/wire wheel
    big hammer (to help bend the metal in the vise)
    drill
    dremel with cut off wheels
    rat tail file
    ruler and sharpie marker (measure twice, cut once)
    I used a short piece of pipe to bend the locking pin clamped in the vise
     
    Last edited: Jul 4, 2007
  2. Boyink

    Boyink Super Moderator Staff Member

    Hmm...good stuff.

    Got me thinking...since I just started sorting out a new wiring harness...could route one of the backup light wires through a relay and use it to turn on another, heavier wire running to a removeable, trail only light like that. I already have a receiver mount in the middle of the spare tire...
     
  3. schardein

    schardein Low Range Therapy

    I didn't mention the rest of the wiring. It is controlled by a relay that is in turn controlled by the factory backup switch. Future projects include a separate toggle on the dash. Ultimately I want it to come on all the time in reverse, while also being able to switch it on at will.
     
  4. Boyink

    Boyink Super Moderator Staff Member

    I was thinking the same thing last night...;)

    But then again if I build one I think I'll just keep it simple and run it to a relay/dash switch for manual operation and simplicity. I wouldn't have the light on there most of the time anyway, just when on wheeling trips.

    I do have a spare wire in my harness that I might as well use for this purpose though, as I don't think power windows are on the to-do list any time soon...:rofl:;)
     
  5. Sledgehammer

    Sledgehammer Sure, I'll try it


    Oh come on. :)
     
  6. schardein

    schardein Low Range Therapy

    Done deal with the tire in place.
     
  7. Fat Va. Boy

    Fat Va. Boy New Member

    Greg,
    Looks to be much better set-up than what you had at the "Great 2007 Ice Run at Shoe Creek". Nice job.
     
  8. Hawkes

    Hawkes Member

    I used that spot for my license plate and light, and just plugged it into the trailer harness. I used my hitch for my spare tire carrier, and have another receiver to weld under the first one for a hitch. I'll have to make a double plug on the Jeepster to feed both.

    [​IMG]

    [​IMG]


    Paul
     
  9. schardein

    schardein Low Range Therapy

    Blake, you know it. I drove out there saying to myself, "self, that is a cool light your about to bust..."
     
  10. godevil

    godevil My Humor isnt appreciated

    I found these at harbour freight on sale for 8 bucks.
    nothin fancy but real bright. Put them under the gas can mount cause it was easy.
    Donnie
    [​IMG]
     
  11. MOP

    MOP Active Member

    for a second there i thought you hunted Boyinks ;)
     
  12. jd7

    jd7 Sponsor

    so did I:)
     
  13. Boyink

    Boyink Super Moderator Staff Member

    :shock::shock:

    That's a pretty common misspelling!
     
  14. godevil

    godevil My Humor isnt appreciated

    No, LOL I haven't even met him, much less hunted him.R)
    Does he retreve?
    Boykin Spaniel is the state dog here in South Carolina.
    Donnie
     
  15. Hellion

    Hellion Regurgitated

    Seems like when I find all the cool threads, they're all dead and devoid of photos and illustrations.

    But suffice to say yes, an auxiliary back up light that is basically a fog/driving light pointing the opposite direction is magnifique! I've seen it before on older 4x4s and off-road rigs... But I'm having trouble visualizing the OP's config.

    I want to see the photos restored and the "future project" realized: a separate toggle switch on the dash to switch on the light at-will.

    Any updates? [​IMG]
     
  16. schardein

    schardein Low Range Therapy

    Wow, this is a blast from the past. I still run basically the same setup, but with an LED light. I still have the pictures that were in this thread, I'll see if I can re-post them.
     
  17. Alan F

    Alan F Sponsor

    Yeah, [sarcasm=on]thanks a lot Photobucket![sarcasm=off]
     
  18. Focker

    Focker That's a terrible idea...What time? Staff Member

    Post #8 ruined by using ImageShack, another "free" (at one time) hosting site. :worry:
     
  19. mickeykelley

    mickeykelley Well-Known Member

    I wonder when posters are going to figure out its a problem so stop doing it.
     
  20. Andy Salagaj

    Andy Salagaj Joshua70x7

    Nacogdoches? I lived in Lufkin for most of my life. Went to see SFA football and basketball many times!