Loading... Please wait...Half Spool, 5" , For 1-1/4" Axle and 9" Spacing, Fits John Deere Disc Harrow Models 310, 315, 330, 331, 335, 340, 350, 355, 360, 375, 635 640, 650, 670 and 637 disc with C spring bearing hanger. Also Fits John Deere Mulch Tiller 1710, 1710A , Replaces OEM# B34211