JD350C question
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- MC crawler
- Posts: 8
- Joined: Mon Sep 17, 2018 7:21 pm
JD350C question
I need a coupling for a JD350C dozer. The coupling goes between the reverser and the tranny. Best I can tell from looking at part numbers the part I need is T14923. I have found some online for $50-$75 but don't have much confidence in the quality of steel used and don't want to do this again any time soon. A good used coupling will suit me but don't want one that's worn out. Just don't want to spend $200 on one... I've spent enough.
Pbrogdo
Pbrogdo
Re: JD350C question
Where are you located?
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- 2010 crawler
- Posts: 597
- Joined: Thu Aug 27, 2009 10:08 pm
- Location: Edmonton, Alberta
Re: JD350C question
With the amount of labour involved to replace why not go new. We have went as far as welding 2 new couplers together and then cutting to maximum length to avoid future rebuilds. We ran Widepads with hoes and turned up to 3-179 engines so we took ever step to improve longevity and reliability. You could always glue your coupler in with Devco putty or a similar which would take the slop out of a used coupler but you might not get it apart again. I’d spend the money if I were you.
Jason Benesch
John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors
John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors
Re: JD350C question
after have coupling failure twice i placed hardened 5/16 "cap screws through both shafts and couling using carbide drills from home depot was not easy required cutting hole in top of housing to install bolt after assembly
JIM
JIM
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- MC crawler
- Posts: 8
- Joined: Mon Sep 17, 2018 7:21 pm
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- MC crawler
- Posts: 8
- Joined: Mon Sep 17, 2018 7:21 pm
Re: JD350C question
JWB Contracting wrote: ↑Fri Dec 06, 2019 9:23 pmWith the amount of labour involved to replace why not go new. We have went as far as welding 2 new couplers together and then cutting to maximum length to avoid future rebuilds. We ran Widepads with hoes and turned up to 3-179 engines so we took ever step to improve longevity and reliability. You could always glue your coupler in with Devco putty or a similar which would take the slop out of a used coupler but you might not get it apart again. I’d spend the money if I were you.
This exactly what I am considering doing to this one, welding two together.
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- MC crawler
- Posts: 8
- Joined: Mon Sep 17, 2018 7:21 pm
Re: JD350C question
So, does anyone have any experience with the cheaper aftermarket couplings? Can anyone confirm I have the correct part number?
Perry
Perry
Re: JD350C question
That part number looks right from a review of the 350C parts catalog. It looks like that coupling was used in all the 350s , straight 350s through the 350D series.
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- 440 crawler
- Posts: 167
- Joined: Sun Sep 22, 2019 8:56 am
- Location: Quesnel, BC, Canada
Re: JD350C question
I don’t think inside a machine is the spot to go with a cheap aftermarket part. The cost of time etc to pull it back apart, after the cheap part you saved money on money on, fails again. Just saying.
- gregjo1948
- 350 crawler
- Posts: 1000
- Joined: Mon Aug 30, 2010 5:58 am
- Location: Newark Valley,NY,USA
Re: JD350C question
I replaced mine that, I believe, I got from Lavoy. You should take note of the shafts that the coupler is connecting. If the splines are poor on them, it will shorten the life of the coupler. There are a couple reasons why the coupler goes bad. If the housings have loose bolts, allowing the housings to split apart unevenly, (wider gap at the top) the shafts aren't rotating evenly on the splines. Also if your reverser isn't adjusted correctly and it slams/jerks/jolts the machine into motion, it twists harmfully hard on the splines on the shafts and the coupler.
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford
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