How do I figure out what ratio my rear end is? It is a late-70's rear end.
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How do I figure out what ratio my rear end is? It is a late-70's rear end.
Jack up one wheel. Turn it one turn and count the turns the driveshaft makes, and double it. That number, expressed as a fraction, is the ratio. If your rear is a limited slip, jack up both wheels and count driveshaft turns, that is the ratio.