KIT-ADJ BLOCK - 4 SPD-HORSEAdjustment Block Kit - All 4-Speed Horse II and Later Model Tillers (Serial numbers 314151 and higher)3 7/8" long -  Includes: (1) 1920 - adjustment block - 3 78" long(1) 9710 - Hex head bolt - 3/8"-16 x...