How do I change the window motor on 1998 toyota 4 runner?

I checked my all data and there is no removal procedure listed or illustrated. Many times the whole mechanism has to be removed to gain access. The mechanism may be riveted to the door itself and if is the csse the pop rivet heads will have to be drilled off. There are special long pop rivets for this and the rivet gun for installing them is special also. Nuts and bolts most times will interfere with the mechanism so hence the use of rivets. Usually the window is disconnected pushed up to a closed position and held in place with a rubber or wood wedge shoved down between the glass and the door body. This will keep the glass up while the mechanism is being removed. Sometimes the door metal door panel has to be cut and pried down a bit to get the unit out and pushed back up after reinstalling the mechanism. Hope this helps you some.