Getting that stainless trim to fit close to the the windshield right is a PITA. That's what my wipers hung up on on my '72. Don't know how to adjust the "fit" without dorking up the bottom window trim.

Also, if the wiper refill is least bit weak/worn out/soft, it will fold over some and the refill clips will hang on the edge of the trim.

If they don't fit under the hood, my guess would be warped hood rather than misfitting glass.