Older 3 wire stove to a 4 wire receptacle?

You have to purchase a new cord assembly that is designed specifically for ranges. Hardware stores usually carry these cords. Tell the salesperson what you want to do with it and they should give you the right one. On the back of the stove you will find a terminal block with three screws in it. Your newly purchased cord will have 4 wires in it. Red, Black, White, Green. Connect the red wire to the first terminal screw (left). Next the white to the center screw and finally the black to the last terminal screw (right). You are now left with one green wire to connect. There might be a jumper strap from the white wire "neutral" terminal position to the chassis frame of the stove. This must be removed. There should be a ground lug that is bolted to the chassis of the stove. If there isn't a ground lug install one in the place where the jumper strap connected to the chassis frame. There might be a ground lug in the four wire stove kit that you bought, if not buy a #6 ground lug. Put the green wire into the lug and tighten. Make sure the stove receptacle that you are plugging into is turned OFF. Plug the stove into the receptacle. Turn the breaker back on. Stove should be up and running.