ekennedy21 Posted July 25, 2021 Share Posted July 25, 2021 Does the air range shifting on the T2180 18 speed transmission work on full 120 p.s.i pressure or is there a regulator on them? Quote Link to comment Share on other sites More sharing options...
terry Posted July 25, 2021 Share Posted July 25, 2021 (edited) Can,t say for sure, but the older 12 spd had a regulator that cut the trans working pressure down to about 60 or 65 pounds. terry Edited July 25, 2021 by terry Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted July 26, 2021 Share Posted July 26, 2021 (edited) Full tank pressure, 90+ when the truck is low on air, flip the range button while you build air pressure. when the T.P.V. gets above 85 psi, you can here the range clutch shift. jojo Edited July 26, 2021 by Joey Mack More content needed 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted July 26, 2021 Share Posted July 26, 2021 what is going on with the tranny? Quote Link to comment Share on other sites More sharing options...
Popular Post ekennedy21 Posted July 26, 2021 Author Popular Post Share Posted July 26, 2021 15 hours ago, Joey Mack said: what is going on with the tranny? switching the engine and trans in my superliner from a cummins with a 15 sp fuller to an E9 with a mack 18 sp. 4 Quote Link to comment Share on other sites More sharing options...
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