Mackpro Posted February 21, 2011 Share Posted February 21, 2011 Had a new CXU stop in and it had the first M-drive transmission that we had seen. Driver said it was super smooth shifting and really liked it. We got 2 techs at M-drive Mack school this week. Hope these transmissions are trouble free! Sorry pics are sideways! Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/ Share on other sites More sharing options...
Rob Posted February 21, 2011 Share Posted February 21, 2011 Is that a 1700 series driveline? Looks a bit small from the photo.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73300 Share on other sites More sharing options...
bts-4120 Posted February 21, 2011 Share Posted February 21, 2011 looks like a power shift transmission out of a farm tractor to me Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73301 Share on other sites More sharing options...
bts-4120 Posted February 21, 2011 Share Posted February 21, 2011 looks like a power shift transmission out of a farm tractor to me Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73302 Share on other sites More sharing options...
sbrem Posted February 21, 2011 Share Posted February 21, 2011 Is it a re named Volvo I-Shift, or something different? Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73308 Share on other sites More sharing options...
rhasler Posted February 21, 2011 Share Posted February 21, 2011 Is that a 1700 series driveline? Looks a bit small from the photo.RobIt's a Spicer SPL series driveline.Is it a re named Volvo I-Shift, or something different?It's an I-Shift, maybe it has different programming to match the Mack engine programming. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73312 Share on other sites More sharing options...
Rob Posted February 21, 2011 Share Posted February 21, 2011 It's a Spicer SPL series driveline.Isn't that one of those "lubed for life" type drivelines? Seems my "Tiger Tool" literature states it won't work with that driveline.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73316 Share on other sites More sharing options...
mack4ever Posted February 21, 2011 Share Posted February 21, 2011 Had a new CXU stop in and it had the first M-drive transmission that we had seen. Driver said it was super smooth shifting and really liked it. We got 2 techs at M-drive Mack school this week. Hope these transmissions are trouble free! Sorry pics are sideways!hey mackpro.the transmissions are very trouble free.the only problem we had so far is to much airprecior.i don`t know if you have on APM for airsuplay.we have them on our renaults and it`s crap.but for the rest the transmissons are very good and the drivers here are very pleased with them.they say the shifting is better on a renaukt then on a vulva.mack4ever. Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-73320 Share on other sites More sharing options...
granitefan713 Posted March 23, 2011 Share Posted March 23, 2011 My Mack dealer just delivered a Pinnacle daycab with an mDrive last week. I'll keep my ear open to how they like it. I saw it on the road yesterday, sharp looking truck too. Quote http://www.flickr.com/photos/granitefan713/-Dave Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-74750 Share on other sites More sharing options...
Mack 3P Posted March 24, 2011 Share Posted March 24, 2011 My Mack dealer just delivered a Pinnacle daycab with an mDrive last week. I'll keep my ear open to how they like it. I saw it on the road yesterday, sharp looking truck too.From what I see we are building the same amout of mDrives as Allison's Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-74773 Share on other sites More sharing options...
rhasler Posted March 24, 2011 Share Posted March 24, 2011 From what I see we are building the same amout of mDrives as Allison'sSo does that mean an overall increase in highway products or an overall decrease in vocational/refuse products? Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-74775 Share on other sites More sharing options...
Bullheaded Posted March 25, 2011 Share Posted March 25, 2011 Ya, it's too bad Mack has that agreement with Allison for the vocational trucks, be nice to have that M Drive in a Granite. Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-74810 Share on other sites More sharing options...
Dlock13 Posted March 25, 2011 Share Posted March 25, 2011 I wouldn't be jumping head over heels just yet if they are similar to the I shift. They are very expensive to replace. The truck can not be moved if the engine is not running. If by chance your truck were to shut off in traffic it couldn't be dragged to the shoulder without disconnecting the drive shaft or pulling all four axles first. Otherwise the trans gets ruined. Just what we have been told as towers. Quote Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-74817 Share on other sites More sharing options...
rhasler Posted March 25, 2011 Share Posted March 25, 2011 I always figured gears were gears, a transmission is a transmission and a rear end is a rear end, and that there wasn't a whole lot that you could screw up by adding electrical equipment to one. I must have been wrong. I wonder where we'll be in a few years with these. As said earlier, the cost of replacement is prohibitive, they're too easy to damage, and I don't think rebuilders will have much luck rebuilding them. So what do you do with a truck that in five years time is useless and not worth what was paid for it due to a shot automated transmission? Time will tell how the mDrive will fare, but if the transmissions don't hold up it seems like it will really put a damper on used truck availability. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/18077-m-drive-transmission/#findComment-74828 Share on other sites More sharing options...
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