I have a 1772 Cub Cadet, and the manual states it will accept a model 450 Snowblower. However, I might have access to a model 451 snowblower. I noticed that the gear boxes in each unit are geared differently: The 451 has a 12:31t & the 450 has a 15:28t. I'm told that the tractors that accept the 451 have a PTO pulley of 4.625" dia. BUT, the 1772 pto pulley is 6" dia.
Could somebody help me in determining the difference in the rpm given the above information?