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Ballast resistor is stock on all F engines, 6903 - 7501, using OEM coil compatible with ballast resistor.
View attachment 2962566
I`m not sure if it did stock, but you can certainly run a set up like that. I did on my '69.
@Living in the Past is correct, there is no separate listing for the ballast resistor 3903 - 7208, but it MAY be that way because the coil part number came integral with the resistor, such as illustrated in @ToyotaMatt 's pictures of his offering. I know the coil I got from Mark A. came that way.Looking on Amayama the 3/69-1/75 is grouped together. Click on the ballast resistor and shows 9/72-2/73 as 90919-04004 with 90919-04005 as a sub. Then 3/73-1/75 as 9091904005 with 9091904036 as a sub. Nothing for 3/69-8/72.
@Crinkler
Your coil may or may not need the ballast resistor, depending on the construction of the coil. Some aftermarket coils have internal resistors, obviating the need for the external resistor. Maybe a PO made the change sometime in the last 50 years.
The only way to know for certain is the see if the coil is marked "needs external resistor" or by testing the resistance of the primary section of the coil ( across the + and - terminals) and comparing that to the standards (listed somewhere here on 'Mud). Before you add a resistor, I'd find out more about your current coil. Adding a resistor to a coil with internal resistance would likely result in a much weaker ignition spark.
@Living in the Past is correct, there is no separate listing for the ballast resistor 3903 - 7208, but it MAY be that way because the coil part number came integral with the resistor, such as illustrated in @ToyotaMatt 's pictures of his offering. I know the coil I got from Mark A. came that way.
When you could order tie rod ends from Toyota, they each came assembled with the tie rod they were connected to. I suppose it was Toyota's way of saying "you really need to replace the tie rod when you change out your tie rod end", or at least what their lawyers said.