Difference RU4 VS RU11 Ballast Resistor?

Electrical & Ignition

  1. Dibbons

    Dibbons Well-Known Member

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    My '72 Satellite has a two wire ballast resistor. I found a spare in the glove box marked RU11 but online search tells me it does not fit my application and that I would need an RU4? Anyone know the the differences here? Thank you.
     
  2. Badvert65

    Badvert65 Well-Known Member

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    Look at the blades of the resistor. They are usually marked with the resistance value. If the number is the same, so is the resistor.
     
  3. tak419

    tak419 Well-Known Member

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    I thought all 72 Satellite models had the electronic ignition which takes the 4 prong resister.
     
  4. Dibbons

    Dibbons Well-Known Member

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    I guess the lowly two-barrel 318 had to wait one more year for the electronic system to become standard equipment.
     
  5. Badvert65

    Badvert65 Well-Known Member

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    Some cars had electronic ignition in 72, but it wasn't standard equipment yet. It was used across the line starting in 1973.
     
  6. tak419

    tak419 Well-Known Member

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    Learned something new today. I had always thought 72 was the year it was standard..I now know it was 73..
     
  7. 1972GY8SE

    1972GY8SE Well-Known Member

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    4 barrel cars got it in 72.
     
  8. 5.7 hemi

    5.7 hemi FBBO Gold Member FBBO Gold Member

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    7 is the difference.
     
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