Deck lid rattles bigtime

'74 Sport said
It sounds like a tin can being kicked down a cobble stone road. The problem is the globs of body filler the factory sandwiched between the inner and outer skins has all fallen out over the years.

What have you done to fix yours?

I'm thinking about using a long skinny tube (like the clear plastic one on the refrigerator ice machine) and squirt some Great Stuff expanding foam up in there. The tube fits nicely onto the nozzle provided with the can of foam. I could guide it into place through the hinge mounting hole by taping it to a stiff wire. I also have the holes that were cut for the go-wing mounting brackets.

Anybody see potential problems with using that foam? Is it susceptible to retaining moisture and causing rust from within? Something has to be done, I can't tell you how annoying it is.

Jerry

I've used it in whole custom van interiors before with a twin tank kit, instead of fiberglass. We had done alot of vans in the 70's with fiberglass insulation, but quit and went to foam in the early 80's due to the foam not holding moisture. If the skin is broken on the expanded dry foam then that part of the foam will hold moisture but won't go through the foam past the other side skin of the foam.
I did a mini van of mine one time, used to haul frozen horseraddish sauce in 5 gallon buckets. Thank goodness for the foam and AC! The other guys wouldn't haul due to defrosting and fumes then.
It also will make body panels super strong.
You might want to use the low expansion version for windows and doors in the blue can, NOT THE RED CAN!