Loading... Please wait...4" Half Spool, for 1-1/8"SQ or 1-1/2"RD Axle, 7-1/2" or 9" Spacing, Round Hole (new style), Fits Case IH Disc models 132, 350, 370, 470, 475, 485, 490, 496, 3600 & 3900 RMX340 ,Replaces OEM# 101191C1, Bearing surface is machined