The power seat gear is all on the underside of the seat frame and bracketry so that comes along if you move the seats over as an entire unit. The extended cab seats have unique frames to fit the floor of an extended cab which dips down low in the rear for passenger foot room.
So, to make them work in a regular cab you'll either need to cut, shorten, and re-weld one of the middle brackets (the obviously longer one; it swaps sides from the 88-94 to 95-98 seat design change) which can be tricky on the power seats as there's not really enough "blank" area you can chop out, OR, and this sounds like a horrible ugly hack but in reality it's not - you carefully mock the seats up into position (bolt the outer 4 bolts in where your bench seat came out), mark the area of the floor where that longer bracket sits, remove the seat and then pound a big dent in the floor with a sledgehammer. Yeah I know it sounds awful, but the result works great and you'll never see it.
You'll probably also need to drill 4 new holes in the floor for the middle bracket bolts as your regular cab won't have them. Mock up, measure, mark - carefully - before drilling. Then, use bolts with some form of locking nuts, whether they're nyloc, prevailing torque, or plain nuts but with lock washers.. and the largest, thickest flat washers you can find to go under the floor to reinforce the holes so the bolts don't rip through in case of a crash.
Richard