I have a ariens 932 snow blower(used). It needs the sheer pins. Can I purchase any sheer pin or should I use oem. Also It states that it's a 5+2. What does that mean? I'm just your average joe that can figure out how to use something, but doesn't quite know all about it. Any help you can give me would be greatly appreciated. thanks

I have a 1994 MTD model 314-640F000 snowblower that i aquired. It worked fine on the light snow we had last week, however now that we have packed snow from the plowtruck the auger blade will not power thru it. I brought it in the garage to see if the belts were lose or glazed, or the engagement was lose. Everything checked fine. The blower fan spins fine and doesnt skip a beat. Nothing has stopped it yet. When i moved the blower fan with my hand it does spin the auger, however just by me slightly holding the auger the auger will stop spinning. That narrowed it down to the gearbox assy. I have since taken the auger off, and taken the gearbox assy apart. Old dirty grease came out (i expected that being its 14 years old) The brass gears look fine, and the worm gear also looks fine. Everything seems solid inside the gearbox, just some old caked on grease. My question is, is there something that was just mis-aligned? or the bad grease causing my auger problems? Also correct me if i am wrong but MTD calls for 2oz. of Shell Alvania grease in the gearbox. If i have a hard time finding that is there anything else equivalint? Thank you for your time, sorry if i was long winded. Josh