If you want to put in the one-piece sprockets, you will need to remove the feeder chain drive shaft somehow. If you have a rock trap, I believe their is enough room to slide that shaft(the one with the big feeder drive pulley) out the RH side without hitting the drive tire. On a machine with no rock trap, you will have to remove the RH tire if you do not want to remove the feeder house. The main thing with those sprockets is to get them properly timed so that your feeder chain runs straight. As far as the chain rollers, they look like what Black Ace has sold for several years for Axial-Flows. They do quiet down the feeder chain considerably. Make sure you get the ones with a solid shaft that runs the entire width of the feeder. Good luck!