I have an older ariens ST824. I have separated it to replace the auger bearing. bought it last winter from a guy on criegslist and he was a hack. I worked fine for the first storm. then the carb started to act up. bought a carb rebild kit and cleaned the carbs still acting up gonna have the shop look at that. My problem is now the guy i bought it from must have craked the halves cause i found that the drive wheel pully was loose and that the set screws that hold the auger shaft and the auger pully where not even tight. nothing seems to be broken so think its fine. when i replace the auger bearing does that need to be pressed onto the auger shaft. the shaft slid out of the old one with no problem.