Weld on Adjustable Jackshaft Kit Weld on Adjustable Jackshaft Kit includes: (1) 13 Tooth Sprocket, 5/8" ID (2106) (1) 17 Tooth Sprocket, 5/8" ID (2108) (1) 5/8" x 16"Shaft (1) Set Adjustable Bearing Hangers (OMBAJSP) (2) Sealed Precision Bearings w/ Snap Rings (MM1030) (2) Keys, 3/16" x 3/16" x 3/4" (8454) (2) 5/8" ID Collars (8555)