Don't see any rivets. Looks all original, just a rubber boot slid over the retractor mechanism. Heat gun might do the trick. dart4forte I see your in AZ ,so you know what the sun does to interior pieces out here. I think its just shrunk on tight?
Has the color faded? If not it's probably ok. Just try the heat gun or hair dryer. As far as rivets, I went out to the garage and the 71 has rivets.
Are you replacing the boot. If not and you are reprinting them make sure you use a good quality paint like SEM. Also make sure you use a good wax and grease remover. That paint will fisheye unless you get it super clean.
