mackr1989 Posted October 14, 2018 Share Posted October 14, 2018 how are you guys splitting gears with mack 18 speeds? i have a 2180b in mine and some people have different ways of shifting these. Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/ Share on other sites More sharing options...
ekennedy21 Posted October 14, 2018 Share Posted October 14, 2018 only split on the high side Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407892 Share on other sites More sharing options...
ekennedy21 Posted October 14, 2018 Share Posted October 14, 2018 if i have a heavy load, i leave it in low on the low side, high if light or empty. Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407893 Share on other sites More sharing options...
1965 Posted October 14, 2018 Share Posted October 14, 2018 I had a T318 in the truck sold. The 2180 might be different; but if I recall correctly; according to the manual it wants you to split in gear; make shift then split. It was definitely different than Eaton; think Eaton you pre select then shift & it shifts going through neutral pretty sure you can download a manual Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407896 Share on other sites More sharing options...
terry Posted October 14, 2018 Share Posted October 14, 2018 (edited) You can split each gear in low and high range, how else to get 18 spds? terry Edited October 14, 2018 by terry Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407902 Share on other sites More sharing options...
1965 Posted October 14, 2018 Share Posted October 14, 2018 15 minutes ago, terry said: You can split each gear in low and high range, how else to get 18 spds? terry Agree Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407904 Share on other sites More sharing options...
1965 Posted October 14, 2018 Share Posted October 14, 2018 I really liked my Mack transmission; but they don’t shift as fast as an Eaton, But I believe they are better performers with that triple shaft in heavy applications 1 Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407905 Share on other sites More sharing options...
terry Posted October 14, 2018 Share Posted October 14, 2018 14 minutes ago, 1965 said: I really liked my Mack transmission; but they don’t shift as fast as an Eaton, But I believe they are better performers with that triple shaft in heavy applications Have agree with that thinking, better to split that torque up with three countershafts than two!! terry Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407906 Share on other sites More sharing options...
ekennedy21 Posted October 14, 2018 Share Posted October 14, 2018 the 13 speed can only be split on the high side. 18 can be shifted in either. That being said, I only split on the high Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407907 Share on other sites More sharing options...
1965 Posted October 14, 2018 Share Posted October 14, 2018 7 minutes ago, ekennedy21 said: the 13 speed can only be split on the high side. 18 can be shifted in either. That being said, I only split on the high That’s true on a Mack transmission; only difference is the knob; but it is made to split in either or high & low; you don’t need a steering wheel holder driving anything but an automatic of some sort Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407909 Share on other sites More sharing options...
AZB755V8 Posted October 15, 2018 Share Posted October 15, 2018 (edited) 19 hours ago, 1965 said: I really liked my Mack transmission; but they don’t shift as fast as an Eaton, But I believe they are better performers with that triple shaft in heavy applications Mack T2100's are defiantly not a fast shifting thing. I like an 18 spd myself because it can be shifted several different ways, 8,12 or 16 depending on the load plus the low hole that is rarely used making 9, 13 or 18 spds. Start skipping or not splitting gears and it seems like forever for the engine to wind down and go into the next gear. You want a throw into gear trans and easier to shift an Eaton is the way to go. Edited October 15, 2018 by AZB755V8 Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407922 Share on other sites More sharing options...
fjh Posted October 15, 2018 Share Posted October 15, 2018 14 hours ago, AZB755V8 said: Mack T2100's are defiantly not a fast shifting thing. I like an 18 spd myself because it can be shifted several different ways, 8,12 or 16 depending on the load plus the low hole that is rarely used making 9, 13 or 18 spds. Start skipping or not splitting gears and it seem like forever for the engine to wind down and go into the next gear. You want a throw into gear trans and easier to shift an Eaton is the way to go. YUP ! Agreed Just as a note If you Do Preselect your (split) however you need to make your shift immediately to avoid damage to the shift fork on EITHER OR transmission! Quote Link to comment https://www.bigmacktrucks.com/topic/54559-mack-18-speed-question/#findComment-407951 Share on other sites More sharing options...
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