door hinge rubber inserts

Not sold. Mopar used rubber, expanding foam etc... over the years. Anything will work as it is just a weather seal. It was not the seam sealer material though you could use it as it just seals out moisture behind the kick panel.
After you install the bolts from the inside of the car, just a dab or squirt depending on what you end up using before you install the outer bolts with the large washer will do the job.
We do complete, no "bushings" remanufacturing of Mopar door hinges.