Charlie,
I've run the Motorola on my Javelin for several years with
no problem. It's a
quality rebuild that I bought at AutoZone. Many people
switch because they
need more amps. The biggest Motorola is 55 amps. And
some people want to
get rid of the external regulator. The Motorola is
definitely an older
design.
AMC also used some Motorcraft
alternators. My son's 78 Matador has a
Motorcraft.
I found a chart
in my Chilton's manual. According to this they switched at
different times
depending on the engine. For the I-6 they started using
Delco in 1975. For
the V8 they used Motorola in 1975, Motorcraft 1976-1977,
and Delco
starting in 1978. If this is correct then you probably do have a
Motorola.
Todd
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