1. would i put it covering the whole inside back (in the hole) and along the vertical support pieces? 2. and then on the outside area surrounding the holes?
3. also, would i put it on the plastic piece?
4. would filling the holes with foam or something help? (after i apply deadener)
expedition too huh.....get as much as you can to the outside sheetmetal through the inner panel holes(third pic down), and just the big areas on the inner panel(fifth pic down)
and do the whole roof, it's easy to get the headliner off, but time consuming... two layers for the roof first layer everything, second layer just the flat parts, not the support beams.and u'll be fine.
for now, im only doing the back door and my doors to kill rattle. later on when i save up more ill move to headliner ect. do you mean ^ for the back door? or how much do you estimate for that?
I know where the rattles are. im trying to solve the source. on that door panel, im trying to see where to apply it. and if i should add great stuff foam after