i can't remember how i know but i trusted my
source, the 2 prong and 3 prong voltage regulators were interchangeable.
you no longer needed the missing prong. i vaguely remember it was
something like a second ground and they realized since it was grounded on the
outer box to firewall connection that they could save a penny and dump
one. so make sure the metal box to firewall connection are good.
it is still a great imperial without one prong. david norris 71 4dr
hdtp the gold brick. plus various lesser dalmlerchrysler products,
all honking my attention.
My 1969 Imperial needs a new alternator and voltage regulator. It came
with electronic voltage regulator part #2874500 with the three prong
connector. At The auto parts stores, all the replacement voltage regulator has
the two prongs. Mopar part #3438150.Can I interchange the two voltage
regulators and if not, do I need to change to a newer style post 1970
alternator? Can someone with some knowledge of charging systems help with
this. My Imperial has sat idle for the better part of the summer while I
searched in vain for the apparently unobtainable one off positive brush
alternator part #2675713. the only instructions that I can find are for pre
1970 vehicles with mechanical regulators and 1970 or later with two prong
regulators; not 1969 Imps with electronic voltage regulators. Thanks.
Dwain
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