I have a 1967 300 (440, no A/C, original 22" radiator) that was not factory-equipped with a fan shroud. I bought a shroud and bracket kit from Dante's:
https://dantesparts.com/i-30499084-mopar-22-fan-shroud-1969-b-c-body.html?ref=category:1389295
My question is, how do I install the cage nuts...