lc100 rebuilt transmission oil leakage

[armanmhi]

My transmission was recently rebuilt.
I have a small oil leak coming from the bell housing on the engine side.

The leak is minor — about 4–5 drops per day.

The front oil seal has already been replaced.

It is not leaking from the torque converter, because if the torque converter seal were leaking, there would be oil sling marks inside the bell housing caused by the rotational movement when the converter is pulled out.

The front pump is also unlikely, since we installed it using new O-rings and sealant.

The vehicle is a Toyota Land Cruiser 100 Series,
6-cylinder engine,
4-speed automatic transmission (A442F).

any advice would be

 

[jsloden]

If the oil is on the engine side then the rear main seal of the engine is leaking. It really should have been replaced when the transmission was out.

 

[Aracobuilt]

My rule is everytime a transmission is out the rear main seal gets replaced. Unfortunately most transmission shops and auto repair shops don't advise customers on this, shame on them.

 

[excessive]

I would go on amazon, and get the thinnest smallest remote camera you can, and go up through there and see where its leaking from