"For Models: (2400A, 2400B, 2405B, 2410B, 2412B, 3400A ALL W/ C-175
Engine), 3500A W/ C-200 Engine SN 28344> / See Note, (454, 464 ALL W/
C-175 Engine), C-157 GAS"
For Use On 3500A Application, Must Also Use 405866R1 Adaptor. Also Need To Change Ring Gear From 159 Tooth To 133 Tooth Part# 396421R1 For 3500A Application.