Products › Main Opener Arm Installation Tool Image 1 of 1 Main Opener Arm Installation Tool $133.25 Part #NE3072Compatible with: John Deere 50, 60, 90, Pro Series Add To Cart Added! Part #NE3072Compatible with: John Deere 50, 60, 90, Pro Series You Might Also Like Closing Wheel Arm Spring - Left $24.60 Carbide Tipped Drill Bit $63.00 Quick Connectors 2-1/2" $374.75 Drill Cruiser $188.50 18” Single Disc Opener x 5mm $52.00