I've got a 1 ton rear end on my '52 3/4 ton with Huck brakes. On one side I'm missing the silver adjuster "thingy" on the top of the wheel cylinder(see photo). I'd also like to replace the existing one because it was all bent out of shape and has lost it's "springiness".

What do you call this piece? Does anyone know if it's it available separately somewhere?

Thanks!
Tim P.

picture