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Old 04-01-2020, 03:36 PM
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tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
Posts: 11,206
That's a Motorola alternator. It requires an external voltage regulator. Suggest you convert to the 3-wire Delco alternator. Your drawing above assumes all-GM, so you're mixing paradigms. Only the HEI is GM.
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Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
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ECO Green: '15 FCA Jeep Cherokee KL Trailhawk

Last edited by tgreese : 04-01-2020 at 03:42 PM.
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