Maytag itself back in the day told service/repair persons to simply replace wringer heads that required extensive service. Have sets of original service/repair manuals for Maytag conventional washers covering entire range, and that is advice given pretty much across the board.
Maytag's opinion then was repairs that basically called for taking apart wringer head and rebuilding just weren't worth time and effort for service persons, and certainly cost (as in what would charge owner of machine) compared to just buying a new wringer head.
Someone was selling a huge lot of NOS Maytag wringer parts including heads here in group awhile back. Another member also stated a shop he worked for or knew also had NOS wringer heads they were looking to move on.
If you want to have a go at repair or at least diagnosing service and parts manual for your Maytag wringer are available for download in library section of forum.
Oil leaking is common for Maytag wringer washers. Depending upon how bad things are machine can run for months or years with loss of lubricant or even just "crud" in transmission. Maytag built these washers to last and withstand an incredible amount of abuse.
If washer at some point was moved incorrectly and or tipped down wrong way that would have caused oil to leak out as well. There are many extensive and explicit discussions here in group on Maytag wringers, transmissions, oil and how to cope.
Unlike wringer head while it does involve a fair amount of effort getting to transmission, cleaning it out and putting in new oil is comparatively simple. Again library has all necessary parts and service literature detailing what must be done. [this post was last edited: 4/9/2021-00:57]
maytag wringer transmission automaticwasher.org site:
www.automaticwasher.org