T19 Overheating?

[TYEDYEFLASH]

First I'm wondering what and where I can find the right kind of transmission fluid for my T19 Ford dealership said I can use any 80w-90 even GL-5 which I'm running now cause that all I can find. but even before my recent fluid swap (not sure what previous owner had in it) the transmission would do fine driving around town shifting up and down but after about an hour of highway(75MPH) or city shifting it gets very hard to shift. I'm wondering if there is a better lube I can put in it or some kind of vent on it that clogged? Clueless . . .

 

[FarmerFrank]

I bet you could run mud in a t-19 and it would be fine. I've had good luck with 15-40 in them, makes winter time shifting a bit easier. Thinner fluid makes them shift easier but also makes them louder

 

[riotwarrior]

Synthetic?

U sure it is a fluid problem?

 

[TYEDYEFLASH]

Not for sure its the fluid, just trying to diagnose why its hard to shift after an hour of driving whether I'm shifting a lot or not.

 

[jwalterus]

I bet you could run mud in a t-19 and it would be fine. I've had good luck with 15-40 in them, makes winter time shifting a bit easier. Thinner fluid makes them shift easier but also makes them louder

well, I don't know about mud, but I know they run fine on flood water for a couple months at least

I've got 75-90 amsoil in mine, thinking about going with straight 50 weight synthetic whenever I change it again

I should mention, mine gets hard to shift after it's been good and worked as well, love floating it into 1st when you come to a stop yet?

 

[franklin2]

When it gets hard to shift stop the truck and let it idle in neutral with the clutch pedal out. Then push the clutch pedal in and try to put it in reverse. Will it go? Does it scrape? If you wait a little bit will it go or does it never go in?

When it's working correctly do the same thing again and see if it will go in reverse. You may have a clutch problem of some sort.

 

[chris142]

20w50 in mine.the original fluid was a sae90 gl-1 oil that's very close to a 40wt engine oil.

 

[MTKirk]

I use this http://www.tractorsupply.com/tsc/product/shell-rotella-t1-sae-40-engine-oil-1-gal My trans felt very "gooey" and was full of little bronze flakes when I bought it, after a couple changes of this, is shifting very easily. Rattles a bit idling in neutral, but I think that's a shifting fork.

 

[Diesile]

Clutch problem as franklin 2 said......

 

[Knuckledragger]

Sounds like clutch issues, but you could be low on oil, too. That would explain the extra heat and slinging oil off of synchro assemblies will definitely make it tough to shift. Full of oil? Look to the clutch.

 

[TYEDYEFLASH]

That's what I'm afraid of . . . I will pull the tranny here soon and if the clutch is worn replace it and if its still in good shape throw a ZF 5 in there

 

[riotwarrior]

That's what I'm afraid of . . . I will pull the tranny here soon and if the clutch is worn replace it and if its still in good shape throw a ZF 5 in there

No you wont...ZF has completely different input shaft diameter and spline count. Needs a whole new clutch assembly and likely flywheel too.

Just sayin

 

[TYEDYEFLASH]

well yeah that's what I meant is if the clutch is good I'm just gonna accuse the transmission for the bad shifting and do the full swap. Ive been going back and forth about doing it and ill just make that the deciding factor.