I also purchased a Craftsamn, lawn tractor, model # 917.274390 from Sears. Since the purchase 3 years ago (only been used for 2 years) I have probably spent as much in repairs as I paid for the mower. I have replaced almost every part on the mower except for the motor.
I had not planned on purchasing another new mower this soon, but I refuse to continued to throw good money into a bad product. I have been very disappointed in the service I received and the product. My next purchase will definitely not be a Craftsman.