Do any cars or light trucks still bolt the rotor to the hub? I know that one caught me off guard on the MG when I did the brakes on it as it was the first I’d encountered, although I know it’s not an uncommon arrangement.
Those were factory or at least OEM rotors, and I ended up destroying the bolts getting them off. Fortunately that one is a hardware store fix.
If I’m not mistaken, wasn’t that design pretty much standard at one time before the “sandwiched” rotors became common? I also seem to recall that it hung around the S10/Blazer until the end of production, did it not?
I say all of this since I’m wondering if by some remote chance that’s what was on the OP’s truck.