LED Changeover - 1970 to 1972 Skylark & GS

Discussion in 'Sparky's corner' started by knucklebusted, Jan 16, 2018.

  1. Cutlass

    Cutlass Platinum Level Contributor

    Dashbord (light, highbeam, indicator, oil, watertemp, generator, parking brake)
    Sidemarker front and rear
    IMG_3640_low.jpg IMG_3641_low.jpg
    IMG_3645_low.jpg IMG_3646_low.jpg
    Courtesy rear (in comparison with regular bulb)
    IMG_3666_low.jpg IMG_3670_low.jpg IMG_3672_low.jpg
    Brakelight (low and high)
    IMG_3656_low.jpg IMG_3657_low.jpg IMG_3658_low.jpg
    to be continued ...
    knucklebusted likes this.
  2. Cutlass

    Cutlass Platinum Level Contributor

    Backup light (low and high)
    IMG_3659_low.jpg IMG_3660_low.jpg IMG_3661_low.jpg
    Indicator (low and high)
    IMG_3651_low.jpg IMG_3653_low.jpg IMG_3655_low.jpg
    Switchback for Indicator / Park front
    IMG_3667_low.jpg IMG_3668_low.jpg IMG_3669_low.jpg
    to be continued ...
    knucklebusted likes this.
  3. Cutlass

    Cutlass Platinum Level Contributor

    Ashtray, Radio, Glovebox, lights for heating and rpm
    IMG_3647_low.jpg IMG_3648_low.jpg
    IMG_3649_low.jpg IMG_3650_low.jpg
    will find out which ones fit better.

    I will make some pictures once installed in the car also (spring next year)
    knucklebusted likes this.
  4. knucklebusted

    knucklebusted Well-Known Member

  5. Briz

    Briz Platinum Level Contributor

    I put the colored ones in the signal indicators in the dash and had to replace them with the stock 194's at night they were blinding bright whenever you used the signals. The gen illumination bulbs could be dimmed but the indicator lights cant.
    TrunkMonkey likes this.
  6. TrunkMonkey

    TrunkMonkey Well-Known Member

    Yeah. The green ones looked like the Death Star laser beam.
    I put incandescent bulbs back in until i can order some that don't give me third degree burns.
  7. Cutlass

    Cutlass Platinum Level Contributor

    Thanks for the hint, Greg. In fact I did not, I overread your comment on that one in one of the previous posts.
    Honestly, I have a hard time to understand why some genius engineer came up with the idea to reverse polarity. I also had some blood pressure while testing the LED for the rear curtesy (1142/BA15D) because I did not know that ground is one of the poles and not like common the metal base of the bulb. I was close to send the LEDs back to superbrightled. Fortunately and just out of curiosity I tried the two poles (one ground, one power) and they worked :).
    In regards to the glove box, I will have a look and see if maybe I tinker a bit with the socket and reverse polarity there.
    Will let you guys know about the outcome.
    Thanks to Briz for the hint about the indicators. Maybe I am going to put some semiclear heatshrink tube over the led (if installation space allows). Will see.
    knucklebusted likes this.
  8. 78ParkAvenue

    78ParkAvenue LED Interior Lighting

    I've used a bunch of Sylvania Zevo LED bulbs (the festoon style). I've been running them for 3 years. No failures and they have a lifetime warranty. Only on the interior though.
  9. Mark Demko

    Mark Demko Well-Known Member

    I like light emitting diodes and the light they produce, but reading, not only on here, the issues people eventually have, Im staying with the regular incandescent bulbs for automotive use:D
  10. gs66

    gs66 Silver Level contributor

    I had to remove the LED taillights from my 57 Dodge when I put in cruise control to get it to work right.
    Mark Demko likes this.
  11. bostoncat68

    bostoncat68 Platinum Level Contributor

  12. 12lives

    12lives Engage! - Jean-Luc Picard

  13. '72 Skylark Custom 4bbl

    '72 Skylark Custom 4bbl Well-Known Member

    TrunkMonkey likes this.
  14. 12lives

    12lives Engage! - Jean-Luc Picard

    Thanks, I did check them and the 4410-WW8-CB looks right but I'm afraid the 44mm length is too long. OEM was 38mm. I'll check the dimensions closer.
  15. '72 Skylark Custom 4bbl

    '72 Skylark Custom 4bbl Well-Known Member

    I bought mine at Autozone. But I got the cool white that you don't want.

    I had no issues with fitment. Mine are Sylvania 6441.

  16. 68 Skylark cust

    68 Skylark cust French Canadian Member

    Is it working with 2 LED on each side or only 1 LED per side ?
  17. matt68gs400

    matt68gs400 Well-Known Member

    Unfortunately I don’t recall what got it working last summer.
  18. 68 Skylark cust

    68 Skylark cust French Canadian Member

    Did you only replaced the bulbs or you do something other than that ?
  19. matt68gs400

    matt68gs400 Well-Known Member

    I changed the flashers too
  20. knucklebusted

    knucklebusted Well-Known Member

    Interesting discovery today. I swapped the turn and brake lights on my 71 350 GS to LEDs and the flasher already in it WORKED WITH LEDs!

    To test it, I pulled it and put it in my 70 Stage 1 I had already converted. It worked there too!

    Here's a picture of it. Any ideas why this one works and most won't?


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