Construction and other equipment - Tracks for AC HD-6E Crawler Tractor

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Tracks for AC HD-6E Crawler Tractor

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=117562
Printed Date: 01 Jun 2025 at 6:48am
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Topic: Tracks for AC HD-6E Crawler Tractor

Posted By: Steve H
Subject: Tracks for AC HD-6E Crawler Tractor
Date Posted: 14 Jan 2016 at 9:46pm

I have an 1958 AC HD-6E Crawler Tractor that needs new tracks. They tell me they are no longer available. Any suggestions of what I can do for tracks?

Replies:

Posted By: SHAMELESS
Date Posted: 14 Jan 2016 at 10:41pm

think I read somewhere on here that new tracks can be bought at Catapiller for these older machines?

Posted By: Coke-in-MN
Date Posted: 17 Jan 2016 at 12:02pm

Way out ideas on track is to find something else close - then having sprocket changed to pitch of new track .

Should be some track shops somewhere that can help - OR someone who can source parts from old stock hidden here in the US .

Unsure if China is making track in proper pitch but it seems dome of the guys from Down Under can find track - just not imported to the US by anyone .

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: DMiller
Date Posted: 17 Jan 2016 at 3:50pm

These fellas also have a track shop, have helped me with some other issues and may have information:

http://www.dieselenginepro.com/

Posted By: Lazyts
Date Posted: 17 Jan 2016 at 6:03pm

According to Caterpillar, for 37 link HD6:
Fit 1V4599 36 link track assembly, no modifications required, and weld on 3K5841 sprocket rim. (converts to D4E-6.75" pitch, obviously requires D4 shoes as well.) May have to trim off tips of sprocket, due to contact with rear roller, I assume. I've had that problem before fitting "factory" parts on HD11s, as the sprocket runs inside the rear track roller.

Posted By: JC-WI
Date Posted: 17 Jan 2016 at 7:55pm

Lazyts, could you have moved the rear track roller ahead just enough by welding old holes shut and drilling new holes in the frame to accomadate the sprockets?

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He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."

Posted By: Lazyts
Date Posted: 17 Jan 2016 at 8:22pm

On the HD11 it was such a small amount that we just let it "wear in". It was probably due to using a different brand sprocket and roller- each manufacturer with different tolerances. Of course you also can't use a double flange roller on either the front or back of the truck frame for the same reasons.

Posted By: Coke-in-MN
Date Posted: 17 Jan 2016 at 9:07pm

that would be the other measurement the flange on the roller or the width of the front idler inner height .

On the HD5 all the lower rollers are flanged outside as is the top idler

Now the HD4 i had used different top idler

the FD5 uses a mixture of inner and outer guides on lower rollers .