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DD931 · 03-01-2015, 08:10 PM

Both fans are 18 inches diameter. The six bladed one has a much bigger hub with an apparent drain/fill plug. The four bladed one seems to have a sealed bearing. When did the cars shift from wide to narrow belts? 49/50? I assume trucks stayed wide. Is that true?

03-01-2015, 08:10 PM	#5
DD931 Senior Member Join Date: May 2010 Location: PA Poconos Posts: 723	Re: ID Fan Assemblies Please!! Both fans are 18 inches diameter. The six bladed one has a much bigger hub with an apparent drain/fill plug. The four bladed one seems to have a sealed bearing. When did the cars shift from wide to narrow belts? 49/50? I assume trucks stayed wide. Is that true?