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Discussion Starter · #1 ·
recently put a 93 12v into a 1970 gmc. need help getting charging system running. i was using a 70 gm external voltage regulator and i dont know if it crapped out or what. was running 14.3v now couple weeks later is 17.5v Did the alternator cook the regulator or what have others done?
 

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Joel's Diesel
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That is what I used as well. Just go to napa or your parts houe of choice and get an ex reg for a 1978 dodge truck.
 

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Discussion Starter · #8 ·
ya took old regulator to place purchased from and it was wrecked. tried another and it got way too hot in 5 min of running time and voltage started to drop. so i shut it down and hes gonna get me a heavy duty one for a 130 amp alternator. the old one was only good for 60 amp alternator so this should work. i guess we will see.
 
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