Unfortunately the best solution I can give you is.... punt. The only reason that "did not fit" a 185 is that he did not have all the pieces as that is the correct blower for a 185. The pulley setup is called the mule drive and the draft arms may be the same as the plow. The spring does not assist the manual lift but is to tension one of the pulleys on the mule drive and there is a link with a hook on each end that is also required. The parts appear on eBay but the mule drive alone may sell for what you paid fir the blower.