about  15 years ago,   I bought  2  heider  auger wagons  at a sale,  and  basically parked them.   I pulled one out  and pumped up the tires,  and  it  works like a  champ.    Nice and  smooth.     The box   measures  about  7X5..   eyeballing it   estimates  ~ 100-125  bushel?     Were there  different sizes  to these?