Thanks for that information, fellas!

It all really helps manage my time in looking for it all.

To address a few comments --

tclederman : a great set of weblinks.
I see that group 1 refers to 6 volt sizing only.

I did find that BCI group 25 is almost a perfect 12 volt equivalent fit for the stock compartment under the floorboards (group 26 is close too).

Hotrod Lincoln : installing a 12 v gas guage instead is kinda out of the question for cost as I can toggle down the voltage with some sort of reducer. I think the potentiometer is a good idea and there are several in my shop.

As for the windshield wiper and motor, it was purchased some years back "as a 6/12 volt unit". It runs so slowly methinks it is really a 12 volter anyway. So, before I play with voltage reduction, I'm gonna try it on 12 volts.

As for the heater blower. Good point -- perhaps I can find something locally that will replace the 6 volt motor. Otherwise, your resistive method might be the ticket.



About the gas guage --

as mentioned above, I found that mine was originally hard to read properly. The guage needle would constantly move whenever the gas sloshed in the tank.
I thought this was normal for the vintage, so I put a humungous capacitor in line with it and it seemed to solve the problem (hysteresis?) ..it dampened the movement. It also seemed to provide some protection from 12 volt jump starts too -- didn't fry the guage.

I have recently read that the dial's over-reactive movement may not be normal afterall as even those early guages were built in such a way as to mitigate the problem (using a bimetal construct).

If so, can these guages be easily repaired to reactivate their native feature?
I can then turf the capacitor and just place a voltage reducer in line with it instead.

Last edited by 55firstseries; 04/08/2010 5:42 PM.