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 Angle Changer $118.50 Skid Shoe Set 18' x 1/4" $1,000.00 Stainless Steel Lower Manifold Assembly $1,995.00 18" Opener Single Disc x 5mm $62.00 18" Single Opener x 5mm $55.00