Welcome to the Forum Case:case said:
These tractors have a hydraulic pump that runs off the engine which powers a hydraulic motor to the rear axle. Speed is controlled by a hydraulic valve. The exception is the Case model 210 which is gear drive. If you post a picture we should be able to give you an idea of what tractor you may have. You could go to the Technical Library and plug in your serial number to the parts manual for your tractor. You should be able to plug in the year of the tractor here by Serial Number:
viewtopic.php?f=17&t=113
:222: :446: Best Regards, Rich