TD told me he was replacing a wheel cylinder. Being married to a car guy, I know he's done this before on other vehicles but to be perfectly honest, it never peaked my interest.
|(He loves it when I bother him when he's under the truck)
Today (thanks again to Wikipedia) I educated myself on what the whole deal is with wheel cylinders:
Not fixing this issue would mean that eventually you could hit the brakes and have nothing happen. I can't think of single scenario where that is a good thing.
On older vintage vehicles you watch for drips under the car and the way the brake feels when you mash the pedal.
|For the wheel cylinder challenged, it is the funky little thing that looks like
a large bedazzled and filthy D-sized battery at the top of the big brown round thing.
|This is a new one. They are rather pricey,
..and not really all that interesting except for that bird beak description from Wikipedia
|It pushes on the half-circles (shoes) to help stop the truck.
You need them.
Ignorance is bliss.