Stenz Posted September 12, 2017 Share Posted September 12, 2017 The air lines on the shifter have become brittle and cracking. We took them off to replace some lines and shifter. Now shifting from reverse to low or high cant be done without shifting in a specific pattern. Anyone to offer advice all hoses are different colors. Quote Link to comment Share on other sites More sharing options...
j hancock Posted September 12, 2017 Share Posted September 12, 2017 The bottom of the Mack Select Air shift knob ports are marked S (supply) E (exhaust) 1, 2, 3, 4. The diagram shows the ports with the number on the trans. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
Stenz Posted September 19, 2017 Author Share Posted September 19, 2017 Thanks finally got it right Quote Link to comment Share on other sites More sharing options...
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