Yeah thats what I'm thinking. Could I have done any other damage to the car other than blowing out my headlights? All other electronics work fine, even my stereo with two 1600w subs. Which is the reason that I swapped alternators in the first place.

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1981 300 SD 213k miles "Stock for now"
1999 Super Duty 7.3L 113k miles
1981 300 SD 180k miles "Heavily modified" SOLD