JJ's got a good point. Not worth the time to play with the mechanical ones. Got a solid state (Wells VR715) regulator from the local Autozone in my 64. Think it was around $12.00 with a warranty. Uses the original harness connector and mounting holes in the core support. Two things: 1, Disconnect the battery before installing. 2, You need to ground the Wells' case to the core support. Either use a separate ground strap or remove one of the rubber wellnuts and use a bolt and nut through one of its feet.