A slack adjuster and systems, components, and methods can comprise a base enclosure, a pair of floating piston assemblies, and a pair of sensing piston assemblies. The base enclosure can define an internal chamber that extends along a longitudinal axis of the base enclosure and an inlet channel that extends along a transverse axis of the base enclosure perpendicular to the longitudinal axis. The internal chamber can have a first chamber portion, a second chamber portion, and a center chamber portion that intersects the inlet channel. The floating piston assemblies can be respectively provided in the first and second chamber portions. Likewise, the sensing piston assemblies can be respectively provided in association with the floating piston assemblies.