A C Delco(can't get any more factory than that
). They make a platinum plug,and a rapid fire plug version for these trucks. I've used the Delcos in my '94 1/2 ton since it was brand new and never had any problems.
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Thought for the Day… Alcohol does not make you fat - It makes you lean... against tables, chairs, floors, walls and ugly people.
If a prostitute here in America loses her job to a prostitute in India , is that considered "outwhoring"??-Jay Leno