dieselfuel007

I ordered a synchronizer kit to fix some of the worn parts while I had it out the wanted some numbers off the low range hub and the vin they sent me a pai kit 806803 it seems similar but a few things are different did they send me the wrong kit if it’s right does anyone have an installation guide or something for it I ordered a manual but it hasn’t arrived yet btw I haven’t tore into the power divider yet hopefully this fixes it but I have my doubts

I haven’t got to the power divider yet but I understood what you meant

No drives normal it never did this before loaded probably 65k gross pulling a hill in high side made a loud grinding noise for a second then at the next stop sign did it in high side gears getting rolling then on the the hills if I got into it .it got lots worse as I kept going this was all in 30 miles or so no problems before this

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

How would I go about checking the power divider out to see if it has issues

Tires are new all look good

Well it really sounded like it was in the transmission hope it’s not the power divider

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

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

Yep mp10 titan

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

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

Well I’ve finally had some time in the shop swapped ecm with another truck and put the ecm from the truck with the miss in the other truck neither truck run different with the others ecm checked fuel pressure it seemed good at idle and at 1600 while I was at my dealer I picked up a fuel pressure regulator/check valve instantly upon start up could tell it run a lot smoother it was on the job today driver said its way better thanks for all the help

No I don’t have a code reader for Mack

I will clean these grounds I’ve cleaned the engine ground before but I will do it again where is this ground breaker in the bulletin and the ones on the dash?if there isn’t a lightning bolt on the dash will it retrieve this code if I use the cruise control or do they have to be active to do that?