sorry to bother you again.It has come to my understanding that this is the
front bottom of the sliding door.What i would do, is to first stop water
infiltration.To do this , I would caulk the plastic plug that is used to
adjust ther sliding door(see bently).Then, I would remove allllll the
rubber weather striping from around the sliding door and gob vasoline on
all of the rubber and let it sit in the sun for a day or two(SO. CAL. would
b best),.This will cause the rubber stripping to expand(considerably) and
may plug up any opening that the old rubber missed,allowing that evil water
to enter.Next ,check the junction of the floor and passenger rear
seat "pedastal".If you see rust here,it is time to pray.You must grind
grind grind rust away(or move to so. cal.)This area is over a frame
crossmember and access is muy poor,so grind, POR-15,and apply some kind of
wax based undercoat via spray at zeibart to the affected underside
area.After all this take a vacation to so cal.Too much snow here.Good luck,
Roger Sisler