Got tires yesterday at Big O.  Of course, you expect that they will tell you
something is wrong that will gladly fix for a minimum of $200.  They said
both my rear wheel cylinders were beginning to leak.  They took me into the
shop to show me--and  there was some oily residue on the parts.  My
question--is this a pretty straightforward procedure--remove and replace,
then bleed system.  Or is it more complicated in that part of the brake
assembly must be disassembled.  I referred to Bentleys, and it was not
detailed enough to tell.