Self adjusting rear brakes

[Chris & Ranae Procyk <procyk19@domain.elided>]

Although the lower part of the brakes is actuated by the
self-adjuster, the pistons also move outward as the brakes
wear.

In fact, if you're a recent purchaser of an old vehicle, this
can screw you.  You replace the brake pads, and a few
weeks later your cylinders are leaking.  This is because the
cylinder has corroded and roughened up behind the seal,
and when the piston returns to that area of use it quickly
gets worn out.

The reason for regular brake fluid changes (do as I say, not
as I do!!)

**In Use**
'70 1200D 4x4 Travelette 392 4spd
'73 1210 Wagonmaster, 392 auto
**Prepping for Repaint**
'67 1000B step-side p/up  BG241 + 4spd
**Parts (future projects?)**
'72 1010 T'all  392 at, '67 1000B T'all 266 3sp, '68 1100C 4X4 T'all 345 at