I have purchased a set of fiberglass bumpers from someone in the US
(yes, he's reputable). He says he has removed all of the bolts, but
the bumpers are still firmly stuck in place.

I have suggested that there may be some of those hidden fasteners that
car manufacturers so love to install still there...

Anyone with experience in these things have advice?

--
Andrew Grebneff
Dunedin, New Zealand
Fossil preparator
Mollusc, Toyota & VW van nut
Temporarily in Calgary, AB, Canada
<goose1047@gmail.com>