A square baler comprising a gear box configured to receive power from a rotating power source. The baler additionally comprises first and second drive shaft sections extending outwardly from generally opposite sides of the gear box. The gear box is configured to rotate said first and second drive shaft sections using power from the rotating power source. The baler further comprises first and second reciprocating plungers respectively coupled to the first and second drive shaft sections in a manner such that rotation of the first drive shaft section causes reciprocation of the first plunger and rotation of the second drive shaft section causes reciprocation of the second plunger.
