Snow Attachments John Deere Front Mount Snow Blower

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I recently purchased a John Deere 4320 Tractor and a 59" snow blower both used. I thought I could used the mounting for a 3720 on the 4320 but am finding out the 4320 is different and things don't line up the same. Has anyone out there mounted this blower on a 4000 20 series tractor? Help and suggestions appreciated.