Thanks you, and your welcome.
Most blowers will throw their furthest when they have an adequate amount of snow being fed to the impeller
But too much and they can get lugged down.
With a 2 stage that has multiple forward speeds. You can offset the problem
with having only a couple of inches by traveling faster with the blower.
You also have to run the engine at full throttle to get the farthest throw.
Here is a video of my blower throwing about five inches using fifth gear.Ariens 1332
I used "Flange bearings" you can find them on ebay or other places.
Mine look like this.Flange bearing