While you wait for answers, we may have found some information which could help you.
Click here for Turn Key Turns
why is the pto switch on my sears tractor burning out?
Screaming tiller?
transmission sears 917.2555581?
Sears self propel lawnmower and the front wheels do not move?
Mower cranks when primed, but after running a second or two dies?
Problems starting Lawn tractor (Sears Craftman)?