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Technical Headlight Help Please

Discussion in 'Traditional Hot Rods' started by Three97’s, Jun 13, 2025.

  1. Three97’s
    Joined: Jun 11, 2025
    Posts: 10

    Three97’s
    Member
    from SE MI

    Hi,

    My new Model A project has 39 Chev headlight buckets installed by the P/O. I love the look, but the headlight mounts are shot and the trim rings and lenses are long gone. Does anyone know if standard 7" Dietz rings and sealed beams will fit the 39 buckets? Thanks! IMG_3992.jpg
     
    Tow Truck Tom and 41 GMC K-18 like this.
  2. 1971BB427
    Joined: Mar 6, 2010
    Posts: 9,820

    1971BB427
    Member
    from Oregon

    Call DiOrio's Old GM Parts. Joe has old trim rings and lenses for the '39 buckets so you can convert them to whatever you want internally, but still have them look original. Rod runs the counter and can help you. Tell him Vall sent you.
    I converted my stock '39 headlights, but kept the rest looking original on my '39 Coupe. All junkyard parts that cost me $10 to do the job.

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  3. Three97’s
    Joined: Jun 11, 2025
    Posts: 10

    Three97’s
    Member
    from SE MI

    Algoma56 and Tow Truck Tom like this.
  4. manyolcars
    Joined: Mar 30, 2001
    Posts: 9,607

    manyolcars

    The HAMB comes thru again! and in record time
     
  5. Three97’s
    Joined: Jun 11, 2025
    Posts: 10

    Three97’s
    Member
    from SE MI

    @1971BB427 Do you recall what junkyard parts you used?
     
  6. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 3,922

    19Eddy30
    Member
    from VA

    @1971BB427 Good thinking to up grade bulb to modern bulb ..
    Just asking , did you play / experiment
    With bulb depth in relation to Flutes ?
    It affects the quality of the beam ..
    Model As the bulb was adjustable
    Moving inward and outward from the Flutes.
    The Drakes corrected the bulb location
    Over first one's that used 9004 & 6
     
  7. pprather
    Joined: Jan 10, 2007
    Posts: 8,971

    pprather
    Member

    It seems I saw a nice tutorial on that conversion that @1971BB427 posted.
    Maybe he could link that here.
     
  8. jamesgr81
    Joined: Feb 3, 2008
    Posts: 332

    jamesgr81
    Member

  9. rusty valley
    Joined: Oct 25, 2014
    Posts: 4,327

    rusty valley
    Member

    GM used Guide lights during that period, so I'm sure Guide or BLC trim rings will fit. They fit my 37 poncho lights fine
     
  10. 1971BB427
    Joined: Mar 6, 2010
    Posts: 9,820

    1971BB427
    Member
    from Oregon

    In answer to both questions.
    I simply found a 1980's GM car (Pontiac or Buick?) that was hit up front and headlights broken. But the reflectors weren't hurt, so I broke them out and the yard charged me $5 for the broken reflectors and sockets with lamps. I think lamps were H7 style? Once I cut out the sockets with a holesaw I JB Welded the cut down reflectors to the back and added the 4 rivets to ensure it stayed together. I bought the 1157 repair sockets for about $2.50 each and drilled another hole for those also. They snapped into the hole, but I bent the tabs over to ensure they never came out either.

    As for flutes and bulb depth, I just held the new reflector up to the back of my '39 reflectors and the shape matched perfectly for contour, so I gambled they'd be correct. And once I put it all together they worked perfect, except being a little whiter than originals. I simply bought different lamps and plugged them in that had a little more yellowish color like old cars to make them perfect.
    They look like old headlamps, but a lot brighter now!
     
    Three97’s, 19Eddy30 and pprather like this.

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