Spare tire removal 2003 grand caravan

Thanks to all who have responded. The winch works–the cable feed all the way out approx 30 inches free I’ll try again-this “T” has a bulbous knob at the car end that engages a "“safety” to keep the tire from dropping on the road in the event the cable might snap while the car is being driven–this is to prevent the spare tire from being a traffic hazard. The safety mechanism is spring loaded-lubed the spring–appeared to work freely-once the tire is back up-the safty keeps its up—Does anyone really know how to disengage safety so that the tire can be dropped down when it is needed.
Thank you for any assistance.