My point was why does it matter who makes them or where they come from as long as they are correct. Another point is the suppliers aren't going to let you in on who makes them for them. Most aftermarket parts are made buy just a select few manufacturers overseas. Everybody buys from the same...
Good luck finding out. The resellers don't reveal their sources. There may be a dozen manufacturers or just 1 or 2. 99% chance they are made in China like most repop parts. Next question, why does it matter?
Not normal or right. Converters do drain back but they drain into the pan. The only place the transmission is open to the outside without a seal is the vent and that's on the top of the case. Something else is wrong. If you buy the car be prepared to spend some cas to get it fixed right.