Re: Help identifying a 3spd transmission

Posted by 2258019 On 2023/8/23 12:58:30

Thanks again for the help. As you predicted, the cover came off easily.

Here's what we found. It appears that the trans is sealed on the front shaft (which is good to know), so I don't think the clutch is getting splash lubed as i feared.

However, it IS as a feared on the other end...the tail shaft is directly connected to the torque tube via an open bearing. If I had to guess, the gear fluid is splashing around inside the trans, bypassing this bearing, running down the torque tube and into the dif. Once there, the rear dif vents the fluid through a breather, coating the differential in goo. It certainly explains what I'm seeing.

I think the simplest course of action is to drop the torque tube, pull the open rear bearing out of the trans and replace it with a sealed bearing. That would allow the trans to run the correct fluid and prevent drain-back into the torque tube/differential.

I haven't had a chance to stick a boroscope into the joint at the tailshaft to see what we are up against there...but I can't see it being anything other than a slip-on fitting.

Otherwise, the trans seems to be fairly used-and-abused...but functional. I note the braising is wearing off the forks on the shifter...so I may have some material added to build it back up.

Does anyone have any thoughts on what they see here?

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