but does the winch-plate slide into a receiver?
I want to be able to move the winch to the rear when necessary. (and leave it off the truck in the city)
no it does not it is attached underneath the plate. so u are looking for a hitch for a multi mount winch correct? look at big rocks off road
"The Toyota 4Runner/Truck Type2 Winch Bumper is built on the Type1 Front Bumper base with a receiver tube and gussets welded into the center of the upper main tube to create a MultiMount Winch or Recovery point. This allows you to move your winch form front to rear or even store it when not needed. This setup allows for maximum flexibility "