Okay, so maybe this is fluff or a kludge, but I was happy with a simple little solution to what I expect is a common problem. As you see in the first picture, the floorboards from my '74 are way beyond needing to be replaced, and the second picture illustrates that the clutch pedal stopper also has been long dead. I've had the car less than nine months and the car was put up over the winter, so I have haven't driven it much yet. But the POs have hammered the rubber stopper into oblivion and the clip that held the stopper is seriously mashed to junk. You need this hardware when changing your floorboard. Our host sells replacement rubber stoppers, but the shape looks different from what I imagine might have been in place in my car, plus I have no faith that my clip can be resurrected. So I drilled out the spot welds and removed the remains of the forlorn clip.
Here is where the Schwinn bicycle company comes to the rescue. It occurred to me that an old fashioned bicycle brake shoe is just about the same size, shape, and construction as the car's clutch pedal stopper pad. So, I ground off the central mounting bolt from a bike brake shoe and drilled holes in it where the spot welds had been in the main bracket on the floorboard. A couple self-tapping screws and the brake shoe was attached - I mounted the result on my fancy new Rennline floorboard. I'll adjust the position when the floorboard is in the car.
The brake shoe is made of fiber-infused hard rubber and should hold up well. Am I making a mistake?
Jerome