mackaddict Posted October 31, 2009 Share Posted October 31, 2009 I have a 2007 Mack CV713 granite with a 10 speed tranny. It started jumping out of gear in the low range (5th gear) now it jumps out in all low range gears. I was thinking it might be a shift fork when it was missing 5th gear but now I don't know for sure. Has anybody run into this problem before? Quote Link to comment Share on other sites More sharing options...
HK Trucking Posted October 31, 2009 Share Posted October 31, 2009 I have a 2007 Mack CV713 granite with a 10 speed tranny. It started jumping out of gear in the low range (5th gear) now it jumps out in all low range gears. I was thinking it might be a shift fork when it was missing 5th gear but now I don't know for sure. Has anybody run into this problem before?Sounds like the teeth are worn off on the low range side of the range shift, when you put the power to it, the sliders push apart causing it to jump out of gear.Common problem on the Mack T200 series transmissions, a 2007 would probably have a T300 series transmission though. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment Share on other sites More sharing options...
mackaddict Posted October 31, 2009 Author Share Posted October 31, 2009 Sounds like the teeth are worn off on the low range side of the range shift, when you put the power to it, the sliders push apart causing it to jump out of gear.Common problem on the Mack T200 series transmissions, a 2007 would probably have a T300 series transmission though.It is a T310. The normal driver was off, an inexperienced driver drove the truck for a couple of days, he come back only to have it slip in 5th gear. We haven't had any problems with transmissions for a long time. They hired a couple of new drivers. The guy that drove the truck has only been driving for a few months. Appreciate the help. I will pull the top cover and see whats going on. I was thinking maybe the air valve on the top of the tranny was bad untill I got to drive it today. Makes a really bad grinding noise in the low range. Quote Link to comment Share on other sites More sharing options...
hatcity Posted November 1, 2009 Share Posted November 1, 2009 Drain trans. fluid. you might see the chips. Green driver is all I need to hear. Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment Share on other sites More sharing options...
mackaddict Posted November 1, 2009 Author Share Posted November 1, 2009 Lucky we have an extra tranny to throw in it. Still gonna be a chore. I'm just gonna swap em out, install a new clutch, and rebuild the offending tranny. Its a shame they gotta tear it up!!! Quote Link to comment Share on other sites More sharing options...
HK Trucking Posted November 1, 2009 Share Posted November 1, 2009 Lucky we have an extra tranny to throw in it. Still gonna be a chore. I'm just gonna swap em out, install a new clutch, and rebuild the offending tranny. Its a shame they gotta tear it up!!!No shit!A 2 year old truck sure as hell shouldn't have those kind of issues.. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment Share on other sites More sharing options...
Double L Posted November 17, 2009 Share Posted November 17, 2009 I thought Mack trannies were bulletproof? lol Not all new driver's are bad, some take care of their equipment. Quote Link to comment Share on other sites More sharing options...
sgosine577 Posted January 16, 2012 Share Posted January 16, 2012 Have the same problem, with the same model truck. 2007 cv713. Starting to jump out in low range gears. How did u fix the problem. Quote Link to comment Share on other sites More sharing options...
REEL ADDICTION Posted January 16, 2012 Share Posted January 16, 2012 I have a few trucks with those 10 spd if I ever was to buy another new truck I would order it wih a 8sp fuller Quote Link to comment Share on other sites More sharing options...
smorse54 Posted January 16, 2012 Share Posted January 16, 2012 hi, we have 3 2006 Visions with T310 transmissions. These were all 3 trouble with syncros and lo-range drive gears.All were purchased new and all 3 were rebuilt and rebuilt again until warranty ran out and we replaced them with Eaton Fuller 16210C. End of trouble.Steve Quote Link to comment Share on other sites More sharing options...
sgosine577 Posted January 19, 2012 Share Posted January 19, 2012 (edited) Can I replace a T310M with a fuller RTO16908LL 8 speed without having speedometer and computer problems on a 2007 CV713 manufactured in 2006. Or I will have to install a Eaton Fuller 16210C. The T310 have too many problems and is jumping low range randomly. Edited January 19, 2012 by sean Quote Link to comment Share on other sites More sharing options...
smorse54 Posted January 19, 2012 Share Posted January 19, 2012 Sean, you can install any Eaton Fuller.Just make sure you get a bell housing for a Mack.These have the mounting pads on the sides. I got the ones I installed from Camerotas in Conn. They were able to supply the correct shift lever, bell housing and the correct shift cover position. They seemed very eager to take the Mack cores also. I would give them a call. I,m sure I have spelled thier name wrong, but you can look them up. Good luck, Steve 1 Quote Link to comment Share on other sites More sharing options...
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