Red Horse Posted November 6, 2007 Share Posted November 6, 2007 I have an RAD 111 rear axle which has a 35,000 lb. rating and a CRD 62 carrier with a 9.05 ratio. The truck was originally a 540 gas/TR720 (B-68X) and at some point, someone put a 673 and Duplex in it. That gave away 300 RPMS gas to diesel and I believe the crrent Duplex is direct. Anyone have an idea where I might find a CRD 62 with a higher gear? Mack Museum (Don Schumaker) advises that a CRD 118 was a running change for the 62 so that is another option if I can find one with a higher gear. Appreciate any thoughts anyone might have on a potential source. Quote Link to comment Share on other sites More sharing options...
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