PUMPERDUDE,
96 shop manual states same thing as Haynes.
The manual doesn't not give a clue how you are suppsosed to get the coolant/water out of engine block/head. Unless it is supposed to drainout by itself(when radiator drain cock is open).
Many years ago this how I used to get 95 to 99 % of coolant/water out of system. I open drain cock or sometimes I took off hose on bottom of radiator. I took off radaitor cap. I would then start engine and let the water pump push the coolant/water out until it dribbled(then turned off engine). I kept my eye on temp qauge so it would not go into danger zone. Then I would replace lower radiator hose or close off drain cock then would refill radiator.
Do not do this with radiator cap still on.
Start off with cold engine.
I think this will work for you.
But others mite have better method.
------------------
Bill Thomas
Missouri Mule - 96 Wht 4X4 ST CC,5 spd, 3. 54, 8 ft bed, 1 ft high cheater boards.
99 Freightliner bl/wht FL60 ISB-5. 9 24v,215 hp,520 tq,6 spd, 3. 59 nsr,16 ft box, 19. 5 tires,Wt/gvw 11,000/23000