rusted up garbage disposer

I basically just did a direct replacement of the motor assembly of the same exact model.
The existing mounts and hoses I left in place since they were only just a few years old.
I first unpluged the unit, took off the two bolts that mounted to the drain. Then I removed the four screws that mounted to th sink mount.
I exchanged the existing cord since the new one does not come with one. That's it.