:MTF_wel2: Jeremy, pleased to have you here and sorry to hear of the issue with your Ford 640.
The first place I can think of at the moment would be one of our advertisers which is Steiner Tractor at this link http://www.steinertractor.com/catalog.aspx. These folks have many parts for older tractors of all makes. You can call them or check online
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Perhaps post your issue in our Ford/New Holland Forum as well and hopefully some of the guys there can offer some help :fing32:.
The first place I can think of at the moment would be one of our advertisers which is Steiner Tractor at this link http://www.steinertractor.com/catalog.aspx. These folks have many parts for older tractors of all makes. You can call them or check online
Perhaps post your issue in our Ford/New Holland Forum as well and hopefully some of the guys there can offer some help :fing32:.