Cub Cadet Original Leaky tailshaft
 

Hi all
I gave my Cub Cadet Original all new oil seals in the rear in October 2021 and rebuilt the rest of the trans in April 2022. After that I has absolutely no issues with the transmission at all. That was until yesterday when I was cultivating with it and there was a very constant stream of fluid coming from what appeared to be the tail shaft where the clutch driveshaft meets the arm coupling which leads into the transmission. A drip about every second and when I drive forward then put then put the brakes on, a very steady stream of fluid then back to drips. I replaced the oil seal there with one I bought from NAPA that was a near perfect fit. Fit inside the hole perfectly and fit over the shaft perfectly as well. Has anyone had a bad history with these seals? From what I can tell it looks fine and I know they don't need frequent replacing given that the seal I took off before the NAPA one was the original IH seal. Its also worth mentioning that this tractor would drip a lot when i first got it. If I where to leave it on a cement surface overnight, A puddle of about 5 inches would form underneath it and leak at the same location. After I replaced that seal I had no more dripping but after yesterday, if I where to park it and let it sit on a cement surface for about 5 minutes, a puddle of around a foot to a foot and a half would form. Any ideas? There's no strange rumbling sounds from underneath the tractor and the drive shaft is as straight as an arrow. I have no clue what could have compromised this.

:bigeyes:

Were those seals made in China ???

:bigthink:

I am guessing but the seal failed or you have too much tranny fluid in there. Do you know which one of the plugs you use to check the fluid level in the trans?

Yes, the fluid was below the threads, I added another quart of SAE 30 and it was nearly to the threads and it still all leaked out at the end of the day

Suprisingly american made lol

Was the Cross Reference good ??

:bigthink:

Just throwing this out there. Using process of elimination, thinking was seal area cleaned and checked for burrs or grit? Did the seal get twisted? Hope it helps.

I trust nothing as far as any made today. It's what were stuck with. Processes change, new machines don't produce products exactly the same size or the same way. There is a lot going on. And the consumer pays for it. The best one, a company is all production no quality. Sorry for the steam vent. Ethanol causes a lot of problems.

Does the input shaft have any side to side movement?