Posted by Eric B. on Friday, July 16, 2004 at 4:59PM :
I have found three different Ammeters on 1960s WM300s, AMPS gauges that read 30 0 30 or 60 0 60, and an ALT gauge that reads D 0 C.
Which one does your WM300 have, and what year is your truck?
I could only find one change listed in the books, and that was early in 1966, so I think that is when the ALT gauge with the reading D 0 C came into use.
I still do not know when the 30 0 30 or 60 0 60 AMPS gauges were used, though I do know the 30 0 30 gauge was used from the begining of the 12V 1956 trucks until at least 1960. It may have been used all the way until 1966, but I can not find data to back that up.
Thanks for any help you can provide!
Eric
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