is conveyed from the cutting reel 24 to the forage blower 26 by a transverse feed auger 28 positioned along the rear of the harvester the blower discharges the silage into a trailing wagon not shown through a rearwardly extending adjustable spout 30 fig2 power is delivered to the operating mechanism by main drive shaft 32 extending from the tractor power takeoff pto not shown the fore and aft main drive shaft 32 is connected to the main input gearbox 34 mounted on the inboard end of the forage harvester the main gearbox contains a drive shaft 36 through which it delivers power to the various components on the outboard side of the forage harvester the feed roll mechanism is driven from drive shaft 36 through a belt and pulley drive 38 reduction gearbox 40 and connecting drive 42 the fan 44 of the blower 26 is mounted and driven by the main drive shaft 32 connected to the end of the drive shaft 36 is universal joint 46 the universal joint secures end 48 of transmission member 50 to the drive shaft transmission member 50 comprises rod 52 of which end 48 is connected to the universal joint and cylinder 53 into which the remaining portion of rod 48 is inserted cylinder 53 contains a rubber seal not shown placed between the rod and inner walls of the cylinder this rubber seal eliminates any harmful torsional forces from being exerted on the cylinder connected to the other end transmission member 50 is coupling assembly 56 the coupling assembly comprises a u shaped connector 58 adapted to receive end 51 of the transmission member coupling assembly 56 also.