350B Steering Clutch Linkage Jam Nut Thread

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mccann316
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350B Steering Clutch Linkage Jam Nut Thread

Post by mccann316 » Thu Apr 15, 2021 6:05 am

What thread is the rod that the ball socket screws on for the linkage to adjust the steering clutch? I need a new jam nut. I thought it was 3/8-24 but it’s not, it appears to be something like 3/8-32 which there is no such thing? The threads aren’t messed up but I can’t figure out what the thread is. Thanks

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LeonardL
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Re: 350B Steering Clutch Linkage Jam Nut Thread

Post by LeonardL » Thu Apr 15, 2021 6:39 am

I don't remember the actual thread on these adjusters. I do know they are John Deere specific. I'm not sure if Lavoy has them or not but you should ask him to see if he does or has a source for them. Otherwise it is a Deere specific part.
40 plus years working on JD 350s, 400Gs, 450s and other equipment both Ag and Construction.

mccann316
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Re: 350B Steering Clutch Linkage Jam Nut Thread

Post by mccann316 » Thu Apr 15, 2021 6:44 am

Thanks very helpful I thought I was crazy. It’s kind of stupid though a standard thread wasn’t used

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Lavoy
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Re: 350B Steering Clutch Linkage Jam Nut Thread

Post by Lavoy » Thu Apr 15, 2021 8:02 am

Standard thread would not allow fine enough adjustability, therefore they used a finer thread than NF. It exists, just not in a regular hardware store.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

mccann316
420 crawler
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Location: Westerlo, NY

Re: 350B Steering Clutch Linkage Jam Nut Thread

Post by mccann316 » Thu Apr 15, 2021 10:48 am

Looks like Deere part #T19087. Do you know thread or anywhere to source besides Deere? Thanks

mccann316
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Re: 350B Steering Clutch Linkage Jam Nut Thread

Post by mccann316 » Thu Apr 15, 2021 11:01 am

Never mind I just ordered from Deere thanks for the help

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