fullfuel01 Posted December 10, 2012 Share Posted December 10, 2012 I have one r model that had rear end swap at some point so i can't go with the vin. I need a pinion for the first diff and i don't have any lockong power divider. Anyone know the part number for 3.65 ratio? Quote Link to comment https://www.bigmacktrucks.com/topic/28782-365-ratio-in-38k/ Share on other sites More sharing options...
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