Weller Remans, Good or Bad, or Doomed?

If you are that concerned with the transmission, ship it to a shop that will take a look at it.

Im not knocking your mechanical ability or accomplishment in any way. I want you to consider that transmissions are a finely balanced peice of equipment in which huge amounts of forces travel through with precision and power with potential to wreck the thing or wreck you.

I drove a international once with a eaton and 2 million miles on that international eagle. The transmission sounded like a box of rocks being shaken by angels scaring me all the way out and back on the road test with two drivers (Husband wife team testers) in the sleeper soothing my ruffled feathers saying they hear and feel nothing out of ordinary.

Ive trashed trannies and seen badly maintain trannies fail. Ive also trashed the final drives as well now and then. If it is not 100% and there is something out of line I will find a way to trash it. Im not a abusive driver, but I absolutely demand full power on hand where required and need to be able to slide tandems without worrying about the cheap deliberately built driveshaft from spicer twisting apart as a safety measure if I ended up trying to dead pull the trailer in the scale house. I have several more stories to share with you regarding failed transmissions some of which was blamed on me as being a bad driver by a stubborn company boss who refuses to lease a more modern truck with a better transmission and engine.

That's all for now. Im sorry you put so much money into that thing only to see it whine and wail at times. I know something is out of whack somewhere. Let a shop look at it. Maybe they will find something you missed.

 

That's the trouble with components like that. There's really not much you can do to know the internal condition without actually physically disassembling them. If you've isolated the issue to the transmission you can drain the oil and check for chunks on the magnetic plug. Another thing you can do while its drained is remove the PTO access covers if you have them. You might notice something off inside. Had to re-seal a leaking PTO one time on a vac truck. Noticed a little bit of metal inside the PTO case but could not find an issue with the PTO. Felt around inside on the bottom of the transmission housing and there was shrapnel everywhere. Even pulled out a chewed up snap ring from the mainshaft. Put truck OOS and parked it in the back yard. Could have had a good core had the fleet manager listened to me and not had a driver try and take the truck south to the Edmonton shop for repair. Truck made it an hour down the road before it spit a countershaft out the bottom of the case in the middle of no where.

 

What about disconnecting the driveshaft from the tranny and running it through the gears, that should isolate your whine if it will produce without a load on it.

 

Weller is all we use for our trucks. That being said, any one will have a bad product slip by. What matters is that it does not happen often and they stand behind it.

 

Disconnecting a transmission and then placing a power on it at idle or something. Hmmm...

That would be genius. Can you do something like that?

What about a dyno? Ive had been on them for big trucks and you can absolutely cause a loading similar to going up a steep grade loaded and if there is a problem, it will reveal itself then. But in this case Im reluctant to consider it.

Is there anything software driven on the transmission? Possibly a interface to the ECM on the engine so that it knows or communicates to the transmission what's what in real time? Maybe it needs recalibration?

Im just casting a net with some thinking. If youre seeing shavings or metal in the tranmission take another look inside of it real good.

I remembered a sitaution once in a old Brigader GMC (This model goes way back, it was considered a punishment to drive one of these for a variety of reasons back in those days) at a light on US 40 north east of Joppa in Maryland, when the light turned green the clutch jumped into gear too fast (Linkage?) and it bit into a final drive peice of machined gearing around 16 inches long by approx 4 inches across of solid machined gear teeth. It was just like someone taking a bite into a hamburger which caused it to fail at that point. I was told I was very lucky that I did not get blamed specifically for that particular breakdown but it was exceedingly rare and am fortunate it did not happen on the interstate at speed.

 

OP's trucks a 1985 No computers back then.