'91 4Runner Power Steering - Rear Wheel Anti-Lock Brakes (RWAL): Question

Thanks for your help! I'm preparing to replace my leaking power steering gearbox and read this in my Chilton's manual (our '91 4Runner has the PS - RWAL integration).

If any of the lines or components in the power steering system are loosened or removed, the brake system must be bled as well. Preliminary bleeding of both the power steering and brake systems will eliminate most of the air, but the vehicle MUST be taken to a dealer to have the systems properly bled using the Toyota ABS Checker. Be warned that until this is done the rear wheel anti-lock brake function may be impaired.

I'm looking for information, advise, input, from anyone who has worked on their power steering system with integrated rear-wheel-anti-lock.

Thank You,
Randy Graves
CdA, Idaho
'91 4Runner SR5, 3VZ-E, 5spd, 4wd, 195K miles