I cannot figure out what this single stage snowblower fits. The guy I bought it from told me it would fit C and 300/400/500 tractors, but the pulley and PTO don't even come close to lining up. The blower is 36" wide with the wings, 30" without. It has the steel wheels and cable rotating chute. There is a tag with serial no. 30543. Can someone help me identify this. Thanks, -Justin