[FWDLK] Gas Tank Sending Units

[<Posti@xxxxxxx>]

I noted a couple of posts to the list about different sending units for the
58 and 59 cars due to the introduction of the voltage regulator.  While the
cars may indeed use different sending units, the sending unit provides the
ground, not the power for the fuel gauge.  The gauge should be the part
calibrated to the power transformer, so the sending unit should work fine for
either year.  Mopar sending units have a sliding contact point rheostat that
vary resistance like the panel light switch.  The more resistance, the weaker
the ground, and the lower the fuel gauge reads.  When the tank is full, you
have direct contact and the fuel gauge needle gets full power to swing to
Full.

Bob Stein
59 Dodge Coronet (with a dead sending unit)