you can get those switches at NAPA, Standard SLS43 or ColeHersee 8487 .... originally there was only a 'stop' bumper on the clutch pedal arm, like this, you could put one on the brake pedal arm, but if everything is positioned properly it shouldn't need it, the pedal doesn't push the switch arm far - maybe your connection to the master cyl needs adjusting or maybe the switch just fatigued

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics