select the faces click extrude press r hold d snap pivot to opposite corner holding v hold cntrl and click and hold on the red (x) handle move the mouse and scale to whatever size you want. does that work? might only work once. sry, i don't understand. how does this make the extruded faces having the same normal direction and keep the faces together? is the extrude be done w/o keeping faces together? and if so how do you merge them afterwards so each resulting face has the same normal as the original ??? i tried the instruction and could not get anywhere (or is this solution only for this specific problem and won't work universally on any extrudes?)