B Used w/ D247745 PPA. This model was also manufactured w/ 8-1/2" Clutch, check size before ordering.C Used w/ D247745 PPA. This model was also manufactured w/ 8-1/2" Clutch, check size before ordering.CA Used w/ D247745 PPA. This model was also manufactured w/ 8-1/2" Clutch, check size before ordering.D10 Prior S/N 3501D12 Prior S/N 3001D14D15