dieselfuel007 Posted 23 hours ago Share Posted 23 hours ago I have a Mack td713 and I was driving the other day and it popped while pulling a hill and it would do it the rest of the way back anytime you would put it under a load in any high side gear so after reading on here and talking to my dealer we checked the shift fork and the bolt was snug .So we removed the transmission and removed the synchronizer but all the high side gears look good the inside teeth on the low range hub and it’s opposing gear are chewed up pretty good will these have any effect on high side or are there other things to look for Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/ Share on other sites More sharing options...
Mark T Posted 23 hours ago Share Posted 23 hours ago Sounds like you got it. New synchro and anything else worn that comtacts it. Common problem. Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586401 Share on other sites More sharing options...
Joey Mack Posted 22 hours ago Share Posted 22 hours ago Is the popping in any gear when pulling hard? Any worn clutching teeth will become an issue, if not already. Will it do it in the dirt when pulling hard? Do you have an air locking power divider ? Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586404 Share on other sites More sharing options...
dieselfuel007 Posted 22 hours ago Author Share Posted 22 hours ago No it’s just in high side I don’t have a power divider I’m just concerned about the low range hub being chewed up and everything on the high side looks fine range shift fork back for high side forward for low is that correct Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586405 Share on other sites More sharing options...
Joey Mack Posted 22 hours ago Share Posted 22 hours ago Ok. Well I always say,, fix what you know is broke.. I forget. Is the TD a Titan with an MP-10? Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586407 Share on other sites More sharing options...
dieselfuel007 Posted 21 hours ago Author Share Posted 21 hours ago Yep mp10 titan Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586411 Share on other sites More sharing options...
Joey Mack Posted 21 hours ago Share Posted 21 hours ago Ok.. thanks. Want to be on the same page.. I assume you checked the u-joints. Well, i have an idea, but need to wait to see your updates.. Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586413 Share on other sites More sharing options...
dieselfuel007 Posted 21 hours ago Author Share Posted 21 hours ago When it pops it’s like it pops out of gear rpm’s jump you hear gears clash if you let off it grabs ahold again until you apply load it’s not that I’m afraid to put the synchronizer in I just want to be sure it’s the problem Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586415 Share on other sites More sharing options...
Joey Mack Posted 21 hours ago Share Posted 21 hours ago I understand. Well since the tranny is out you may as well replace the bad metal. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586416 Share on other sites More sharing options...
fjh Posted 20 hours ago Share Posted 20 hours ago I would replace the fork too just saying! It is likely worn! Do the disks look worn? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586417 Share on other sites More sharing options...
Joey Mack Posted 20 hours ago Share Posted 20 hours ago The fork tips will tell right quick if its junk, for sure.. Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586418 Share on other sites More sharing options...
dieselfuel007 Posted 20 hours ago Author Share Posted 20 hours ago The fork looks like new there is probably a 1/16 gap between the fingers and the ring it runs in should that be tighter? and the clutches all look I’d go for a reman trans but we are getting rid of the truck.If I put a synchronizer kit in is there anything else not in this kit that could be causing my issues if all the other parts in the back case look good Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586419 Share on other sites More sharing options...
Joey Mack Posted 20 hours ago Share Posted 20 hours ago Since you are selling it, just do the synchro. And shift cylinder orings if you want to freshen them up. Ok.... im gonna say it... i bet the popping noise is the power divider... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586420 Share on other sites More sharing options...
dieselfuel007 Posted 19 hours ago Author Share Posted 19 hours ago Well it really sounded like it was in the transmission hope it’s not the power divider Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586427 Share on other sites More sharing options...
Joey Mack Posted 19 hours ago Share Posted 19 hours ago Keep in mind... the drive shaft is a steel tube... it will carry sounds. Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586428 Share on other sites More sharing options...
fjh Posted 18 hours ago Share Posted 18 hours ago 2 hours ago, Joey Mack said: Since you are selling it, just do the synchro. And shift cylinder orings if you want to freshen them up. Ok.... im gonna say it... i bet the popping noise is the power divider... are your tires even? Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586432 Share on other sites More sharing options...
dieselfuel007 Posted 18 hours ago Author Share Posted 18 hours ago Tires are new all look good Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586433 Share on other sites More sharing options...
dieselfuel007 Posted 17 hours ago Author Share Posted 17 hours ago How would I go about checking the power divider out to see if it has issues Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586435 Share on other sites More sharing options...
terry Posted 17 hours ago Share Posted 17 hours ago 2 hours ago, Joey Mack said: Since you are selling it, just do the synchro. And shift cylinder orings if you want to freshen them up. Ok.... im gonna say it... i bet the popping noise is the power divider... i have a friend that had a olderDM with a quad, he swore it was the transmission making noise, took it out, got it rebuilt and still had the noise, yeah front rear end was the problem. terry Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586436 Share on other sites More sharing options...
880joe Posted 2 hours ago Share Posted 2 hours ago I'm with Joey check the rear power divider peanuts Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586484 Share on other sites More sharing options...
dieselfuel007 Posted 1 hour ago Author Share Posted 1 hour ago I pulled the drain plug out of the power divider nothing other than oil came out how do you get to the peanuts first group of bolts behind the front yoke .does it come apart for inspection and go back easy with out special tools Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586489 Share on other sites More sharing options...
Joey Mack Posted 58 minutes ago Share Posted 58 minutes ago leave the yoke on. remove the bolts and slide the input shaft out. the peanuts will come out with it and they are caged. there will be a 'star' shaped gear inside, that is the inner cam. the peanuts may look ok but the inner cam is likely grooved really bad.. Quote Link to comment https://www.bigmacktrucks.com/topic/76199-t310m-high-side-popping/#findComment-586491 Share on other sites More sharing options...
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