It is possible to configure most large winches to work either
clockwise or counter-clockwise.

Ryk

Why would you want to do this?

America's Cup boats have right and left handed jib winches so the lead
is perfect to the fairlead. My boat has jib winches of the same
handedness and there's chafe on the port side coaming when trimming
smaller jibsfixed by a second fairlead car aft.