before and after of old ac chain vs new dc motor genie chain

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here's a good before and after original opener was a craftsman ½ chain vs new Genie 3024 dc motor chain

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Thanks showing the difference on this Genie opener. It is a lot quieter

VincentJohnsongaragedoordoctor
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Does the door need struts so it does not flex?

MNIAElevators