I have an old Koenig winch off of a 70's era wrecker. It's a gear driven. As far as I can tell it's an 8K winch.
I removed all the old cable and kept the best 30' piece. This keeps most of the work being done with the 1st wrap.
So far the the toughest pull it's done is a SM with 4 flat tires and locked up brakes. Pulled it out of the ground and up on the trailer with no problem.
Gear driven can be run continuously. Planetary driven can overheat and fail on a long pull.