Posted by Eric B. on Monday, January 16, 2006 at 5:57PM :
In Reply to: POS Ground posted by Mark S. on Monday, January 16, 2006 at 1:37PM :
1956 was the first year for 12 Volt negative ground, everything before that was 6 volt positive ground.
If you truck was built before 1956 it may have been modified from original so look for clues that a 12 Volt swap has been done.
Good luck.
Eric
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