[PbFut]

Depends on what was used. The glue on my 72 was stupid hard in some areas. Not likely a weather stripping glue. Nothing would soften it. I was painting so not an issue to wire wheel it being careful with the seam areas. If I was just changing weather stripping, I would have gotten the soft stuff off with WD40, or goof off, and left the hard glue in place and resealed with correct glue if needed. If you have some rust showing anywhere under the stripping and not painting, dab some converter on the spots just to slow things down. Certainly not a permanent solution but buys time and reduces forward progress of the rust. Most converters turn the rust and bare metal to a mat black color.