Freightrain Posted June 27, 2006 Share Posted June 27, 2006 I'm in search of a new/used/better tranny gear for my speedo. I need the internal part(shaft with 13 tooth gear). I'm not sure how common this is? My speedo reads like 8 mph slow, so would putting a 11 tooth gear in tranny be enough to speed it up? Is this a common part?BTW, my gear is chipped and non-functioning right now.Anyone got pieces from there triplex laying around? Or is this still an available part Barry? Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/1230-speedometer-gear/ Share on other sites More sharing options...
B42Art Posted June 28, 2006 Share Posted June 28, 2006 Freightrain, I have a Duplex TRD722 in my B42 and I had a bad speedo cable and tranny gear. I went to Mack with the tranny number and they had the cable and the tranny gear in stock. The gear retailed for $31.00. Give them a try. Hope this helps, Art Quote Link to comment https://www.bigmacktrucks.com/topic/1230-speedometer-gear/#findComment-6297 Share on other sites More sharing options...
Freightrain Posted June 28, 2006 Author Share Posted June 28, 2006 Thanks Art. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/1230-speedometer-gear/#findComment-6310 Share on other sites More sharing options...
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