Disc Axle 1-1/2 inches Square x 89.4 inchesDisc Axle 1 1 2 inches Square x 89. 4 inches Replace Case IH 549981R1 Disc Axle 1 1 2 inches Square x 89. 4 inches Length is 89. 4" under the head with 2 1 2" of 1 1 2" 6 coarse thread. SPECIFICATIONS Interchange 549981C1, FC549981, SMA549981, 2240868 SMA549981, 868SMA549981, 150F8943MAX RT2. 50 #14, 549981, 549981R1, Width 1. 50 Height 1. 50 Length 89. 4 Inches Net Weight (lbs) 58. 00 Make EquipType Models Case IH Disc Harrow 501, 596, 770, 790