Oh boy, did this unleash a wave of memories that came crashing down on me…oops, wrong metaphor. Yes, the timeless ritual of youth, hopefully. And yes, those very old (about a hundred years old, actually) stone-imitation blocks are going to be just fine. But there was still an annoying wiggling, but they finally put a stop to that:
See it there, under that rocker panel, wedged in so carefully? No more rocking when the torque gets applied to the wrench. So what needs replacing today?