Looking at the Propulsion diagram it shows a 1 piece PTO but on the crankshaft diagram it shows the 2 piece one. If you do have the 2 piece PTO then yes, you can just remove the 6 bolts and replace the damaged part. You will also need new drive couplers. And you will have to align the engine as this is the typically the cause of the driveshaft coupler failures, that and broken engine mounts.