Mopar small block fan routing diagram
70 and up a/c cars had a double groove water pump pulley and double groove alt pulley. They had two belts spinning the compressor that ran off the crank-alt-wp
abodyjoe said
proper way to run 70-up non a/c belts..
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You are close, but I think the non-a/c cars had a single groove alt pulley - it aligns a little better...
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