[hathawayrepair]

Maytag Centennial washer leaking oil. Is there a service manual for this model?

[sidfink43]

Hopefully all the problem here is a bad seal on the transmission housing. Here is a schematic of your parts

Part number: AP4410608

I cannot link you to a service manual but if you go to the video section on this site you can find videos that will show you how to tear down a Whirlpool direct drive washer, which is what this is.

You can try replacing the seal and filling it back with oil, but given the cost of a new transmission I would not go that route and instead would replace the machine with a new one. It's not that much more cost and you will have a new machine with factory warranty.