Yes Mile Marker Winch. It sure is an old one. I think it is old enough that it uses permanent magnets instead of series wound. Those winches are usually very slow and the magnets eventually break up.
Not sure how serviceable the motor is aside from replacing it. I sent JR from Mile Marker a message via Facebook messenger. Hopefully he replies.
JR confirmed it is a PE8000. He will send me a PDF of it if he can find one.
Wow @JeepNWilly thank you so much for all of the help! Looking forward to growing with this community of TJ fans