Very easy to do with a front end loader or forklift. Take throat off. Postion loader bucket or forklift under lip of channel iron that holds rotor bearing then take bolts out that hold channel iron to frame. Slowly back away. Might have to hook the rotor to the loader with a chain to get the rotor to start sliding out. When rotor is about halfway out, hook a chain about halfway up the rotor under a rasp bar and fasten it to the loader to support the back of the rotor. then just back away from the combine with the rotor. No need to take off the bearing or elepahnt ears to get the rotor out. To instal, reverse the process. Use a come a long to pull the rotor back into the hub. You can lay a 4x4 across the sheet metal right behing the grain bin to hook the come a long to. Can be a little tricky to get the rotor to slide into the hub. Be sure to replace the bushings and bolts in the back of the rotor. Also replace the kickers as you cant get to them with the rotor in.