[davepl]

My memory is hazy, but: my truck is a 1970 and I bought a complete set of the spring loaded trim clips that go in the holes. The bodyshop seemed to use adhesive ones, and if my hazy memory is correct, they came along in 71 or 72.

So I'd look at how the trim was held on in 71-72, as it might have been adhesive from the factory. That or my body shop found something that works but wasn't stock.