JD 420C Track Project

General help and support for your Lindeman through 2010 John Deere crawler
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Lavoy
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Re: JD 420C Track Project

Post by Lavoy » Tue Feb 19, 2019 9:31 am

You use the tracks off of a D21 Komatsu, or BD2G Mitsubishi, and the weld on sprocket rims off of the Mitsubishi. You can no longer run rock guards unless you cut them off due to clearance issues.
This will only work on 5 roller crawlers, nothing else as the tracks can not be shortened like steel tracks.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

BoBandy
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Re: JD 420C Track Project

Post by BoBandy » Fri Aug 16, 2019 9:11 am

Any word on longevity? I am looking at doing this very seriously. I do use the machine a lot and would like to keep my original tracks for a restoration one day!

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Paul Buhler
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Re: JD 420C Track Project

Post by Paul Buhler » Fri Aug 16, 2019 7:01 pm

Nice to see this thread still running. I bought a rubber tired skid steer so that I could run back and forth to my daughters property a half mile away by road and do earth works, etc. Tracks like this would mean I could do the same with my 420. If I want to move the dozer, it costs me $40/move. I don't have a large enough truck and trailer to do it myself. I often barter, but real independence is a nice thing.
Paul Buhler
Killington, VT
420c 5 roll with 62 blade, FOPS, and Gearmatic 8a winch

gus
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Re: JD 420C Track Project

Post by gus » Sat Aug 17, 2019 12:36 pm

New tracks for D21, $2300.00. Kinda out of the ballpark.

Love the project but......

hydrogeo
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Re: JD 420C Track Project

Post by hydrogeo » Mon Aug 19, 2019 4:23 pm

I have a Kubota mini excavator with rubber tracks and I do not like them. They tend to stretch and pop off at the worst times (no rock guards on the excavator), and they cut pretty easily in the woods. The worst part is they are downright scary in the winter. Luckily I only use the excavator for cutting firewood at the log landing when things are frozen, but rubber tracks on the crawler would mean the end of winter logging fun. For the right person in a warm climate it's a very cool idea, though.

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Stan Disbrow
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Re: JD 420C Track Project

Post by Stan Disbrow » Tue Aug 20, 2019 4:39 am

Hi,

And, to put the cost in perspective, new 350 tracks are $4300 for non-name brand. And, you still need to buy two ring sprockets and deal with the cutting and welding part. But, then they are steel and you get to keep the rock guards.

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

hydrogeo
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Re: JD 420C Track Project

Post by hydrogeo » Tue Aug 20, 2019 8:41 am

I often wonder if you couldn't adapt a set of tracks off an air-track drill. I see old ones pop up for sale every now and then and they have small undercarriages.

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Stan Disbrow
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Re: JD 420C Track Project

Post by Stan Disbrow » Wed Aug 21, 2019 4:40 am

Hi,

Too small for a Deere, the ones I have seen. Some would fit a Terratrac, though.

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

tobaccofarmer
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Re: JD 420C Track Project

Post by tobaccofarmer » Sat Dec 05, 2020 4:49 pm

Does anyone know if there is a track size utilizing same method with weld on outer sprocket that would work on 4 roller? or is it 5 roller only ?
50 MC 11526
50 MC 12103
50 MC 12147
52 MC 15855
52 MC 18039
53 40C 61623 (3) roller
54 40C 62435 ALL FUEL (4) roller 3 point hitch
55 40C 70680 (5) roller 3 point hitch

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Lavoy
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Re: JD 420C Track Project

Post by Lavoy » Sat Dec 05, 2020 10:50 pm

D21 Komatsu or BD2G Mitsubishi, steel tracks only, no rubber in short track lengths.
Somewhere in the $4000 and up range.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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gregjo1948
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Re: JD 420C Track Project

Post by gregjo1948 » Sun Dec 06, 2020 3:02 am

Definitely cool!!!!
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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57jd420
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Re: JD 420C Track Project

Post by 57jd420 » Tue Feb 16, 2021 3:34 pm

Thats awesome!! Hows the traction in the snow?? Myself and all my neighbors have concrete or paved driveways so the Kubota gets the snow removal duty, but I'd love to push snow with my dozer!!!
Home of the free because of the BRAVE!!!

1957 420 5 roller 5 speed

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Lavoy
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Re: JD 420C Track Project

Post by Lavoy » Wed Feb 17, 2021 9:59 am

That is my question as well. Many different track styles available, that will have an effect too. I would think for a flat paved driveway, it would be fine. My worry is hard frozen snow and ice.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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