Ring Gear - Flywheel
CTPA-341604R1 Replacement Part to Fit:  Case/IH "For Models: (1026, 21026, 2826, 2856, 3088, 3288, 706, 756, 766, 786, 826, 856, 886, 966, 986 ALL DSL), (100, 1066, 186, 3488, 3688 ALL HYDRO, DSL)" 132 tooth; 16.680" OD; 15.485" ID; 610" wide  Price:  $46.06  Buyers Club Price:  $41.45