Kyle 537 Posted January 12, 2015 Share Posted January 12, 2015 I have a mack trans with I think is a twisted main shaft. Has any one ran into this before. 2012 gu713 Quote Link to comment https://www.bigmacktrucks.com/topic/38379-mack-trany/ Share on other sites More sharing options...
wheeler73 Posted January 13, 2015 Share Posted January 13, 2015 Which trans is it and what is the issue you are having? Quote Link to comment https://www.bigmacktrucks.com/topic/38379-mack-trany/#findComment-274104 Share on other sites More sharing options...
Kyle 537 Posted January 13, 2015 Author Share Posted January 13, 2015 Only 1st and second. I pulled the shift cover and dropped drive line front half of main shaft spins but not the last synchro and reverse synchro but revers works. Looks like it has a clean brake between two gears never seen a two pice main shaft lol but I'm not familiar with mack I usually do eaton. Quote Link to comment https://www.bigmacktrucks.com/topic/38379-mack-trany/#findComment-274158 Share on other sites More sharing options...
Kyle 537 Posted January 13, 2015 Author Share Posted January 13, 2015 I'm not sure which trans. It's under warranty took to the dealer. Quote Link to comment https://www.bigmacktrucks.com/topic/38379-mack-trany/#findComment-274159 Share on other sites More sharing options...
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