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3416H Driveshaft Couplings

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Hi, any advice on if or when the coupling disks in the drive shaft should be replaced? I'm replacing the cast iron coupler on the front of the bevel gear box (worn keyway) and though the disks look fine, they are 36 years old. Thanks, Larry

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Originally posted by wilm169
WELCOME to the club; If they are not starting to shatter near the hole they should be good.
Thanks, with the mower deck and electric lift in place it's work just to get at them. They look weak by design but the fact is they are 35 years old and doing fine. Larry

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Yup, I'm just being paranoid
Originally posted by HubbardRA
The Fiberglass couplers are a very good design, and unless they are improperly installed, they will last nearly forever.

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