You are correct, but even though the top part does not swivel, the bottom part of the strut swivels easily. So, turning the bottom end to fit the bottom studs is no problem.

Insofar as the attachment to the stud...I followed the instructions of the service manager.

He specifically told me that you must remove the retaining clip before you attach the ends to the stud.

Then you snap the retianing clip back in place to lock it on to the stud.

I hope that this information is helpful to others who might add the struts to the hood.