MACKTRUCKS4 Posted March 6, 2012 Share Posted March 6, 2012 I pulled the top off my trans to finally find out why it would not always shift into high range, Hit and miss all the time. Put all new rails and pistons with o-rings in, no help. I found the housing to be worn where the high-low shift rail goes through. Does anyone have the housing they want to sell? Mack dealer is having a hard time finding one. Quote Live every day like it's your last, because one of these days, it will be. Link to comment Share on other sites More sharing options...
theakerstwo Posted March 6, 2012 Share Posted March 6, 2012 Try PAI Quote glenn akers Link to comment Share on other sites More sharing options...
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