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This is a discussion thread titled "BEWARE Eaton True Trac - bolts fall out", within the Out-of-Production Trucks & SUVs forum, part of the SUV Forums category.


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Old 01-04-2006, 03:36 PM
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Default BEWARE Eaton True Trac - bolts fall out

Just thought I'd drop you folks a little warning.

Here's photos of my Eaton Truetrac which the bolts fell out of in under 10,000 miles destroying my entire rear end - truetrac = garbage, new ring and pinion = garbage, new bearings = garbage, housing = garbage, axles = garbage. Replacement of the third member alone will be in excess of $1500, plus axles, bearings etc.

There are NO safety locking devices on the 8 truetrac bolts!

Eaton refused warranty on this item which was clearly a defect in their design process.

Truck has a stock motor and stock tires and is run 100% on the street.

Guess I won’t be running Eaton truegarbage in my Toyota again.

In a conversation with Reider they say that while this is not a common occurance, it does occur with some regularity since there is no retention system.
Attached Images
File Type: jpg Truetrac1.jpg (199.6 KB, 177 views)
File Type: jpg Truetrac3.jpg (152.5 KB, 127 views)
File Type: jpg Truetrac2.jpg (175.0 KB, 130 views)
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Old 01-04-2006, 04:38 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

never heard of an Eaton truetrac, only Detroit truetrac. whats the difference i know Detroit has helical gears.
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Old 01-04-2006, 05:05 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

sorry to hear about the damage, but that should have been making a terrible noise before it got that bad.
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Old 01-04-2006, 10:23 PM
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Arrow Detroit

EATON does not make the Tru-Trac, DETROIT makes it.
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Old 01-05-2006, 12:27 AM
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Default Re: BEWARE Eaton True Trac - bolts fall out

thats what i figured so what differential is it.
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Old 01-07-2006, 09:36 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

Nope, Eaton owns and makes the Truetrac. I too thought it was Detroit - it's not.

When I first heard it, yes it was a terrible squeeking.
I figured front wheelbearings. Pulled over and felt for temps. Couldn't find any hotspots, rolled it back and forth - no noise.

It was quite intermittnet and I was only 20 or so miles from home so I ran her on in.
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Old 01-07-2006, 10:10 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

check out this thread http://www.pavementsucks.com/forums/...hp?topic=15138
the guy broke a Detroit true-track, found it while searching a manufacturer.
have yet to find Eaton as a builder for it.
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Old 01-08-2006, 09:30 AM
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Arrow NOT an EATON product.

Quote:
Originally Posted by MonsterMaxx
Nope, Eaton owns and makes the Truetrac. I too thought it was Detroit - it's not.
NOPE - It's not an EATON product or product made by EATON.

EATON did make for TRD and KAZUMA...



Did you get a box, part #, warranty card or installation instructions with the TrueTrac?

Who did you buy it from?
Who installed it?
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Old 01-08-2006, 01:02 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

OK this is what i found, the Detroit true track built in 2002 had two helical gears and each end cap had four #8 grade bolts coarse threads, apparently they had problems with the cheap bolts backing out, every one had a problem with the bolts backing out. well not everyone had a problem.
they redesigned it and now theres three gears and six bolts fine thread holding the end plates together. no problems with this one.
trachtech inc makes the Detroit trutrac formerly known as Detroit Automotive Products until 1979.
I'm interested because i was shopping for this LSD unit now I'm not so sure, Eaton LSD may be better or more reliable.
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Old 01-12-2006, 08:07 AM
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Default Re: BEWARE Eaton True Trac - bolts fall out

When I called Reider I said my Detroit TrueTrac has failed.
They said that it's not Detroit, it's eaton and gave me the tel#.
I called Eaton and they agreed it's their product, but denied any warranty.

Was it a sellout? I do not know, but them's the facts as best as I can tell you.
It is an Eaton product.
The bolts backed out.
This ended up destroying the entire third member.
Eaton Denied any warranty, even though they admit it's theirs and that there is some history of problems like this.

Take it as you will...
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Old 01-12-2006, 05:44 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

Lawyer???

A company that sounds like PHabtech sold me some spindles which ended up breaking and bending ALOT and breaking alot. They said "To bad". I explained the design flaw which is because they put the axle below the lower A-Arm which in turn makes the lower A-Arm a pivot point pushing the upper A-Arm into the engine bay. This is exactly what happened. Well my wife works at a law firm and just had the boss write a "Nice" letter and I got my money back. Granted I had to pay for everything else but I got $400 back???
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Old 01-31-2007, 10:18 PM
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Exclamation Re: BEWARE Eaton True Trac - bolts fall out

I dont own a tundra, I have an 88 yota. I will probably never in my life post another thread, but I was google searching about truetrac and i came upon this forum. I couldn't stand you all arguing about something you clearly have no idea what you are talking about . For one, obviously none of you know that Detroit is actually owned by, a branch of, a division of, whatever you want to call it by Eaton. If you dont believe it. Ever been on www.eaton.com??? Go there, look up "differential". Second, I believe that your bolts fell out of your diff, but is it because the True Trac is poorly designed? highly doubted . Did the thought ever cross your mind that they were not torqued properly when installed??? Whoever installed it probably torqued the bolt to the Eaton spec not the Detroit spec. haha, oh ya they are the same friggn' thing. How about, don't argue about something unless you are 100% sure you know what you are talking about. You sound like a bunch of women. "Its made by Eaton", "no its made by Detroit," you are all right all along, so stop arguing. it is very annoying.
By the way, sorry to hear about your diff. No probs with mine for 40000 miles, but i also installed it. go figure.
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Old 01-31-2007, 11:16 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

Quote:
Originally Posted by 4digchevy View Post
I dont own a tundra, I have an 88 yota. I will probably never in my life post another thread, but I was google searching about truetrac and i came upon this forum. I couldn't stand you all arguing about something you clearly have no idea what you are talking about . For one, obviously none of you know that Detroit is actually owned by, a branch of, a division of, whatever you want to call it by Eaton. If you dont believe it. Ever been on www.eaton.com??? Go there, look up "differential". Second, I believe that your bolts fell out of your diff, but is it because the True Trac is poorly designed? highly doubted . Did the thought ever cross your mind that they were not torqued properly when installed??? Whoever installed it probably torqued the bolt to the Eaton spec not the Detroit spec. haha, oh ya they are the same friggn' thing. How about, don't argue about something unless you are 100% sure you know what you are talking about. You sound like a bunch of women. "Its made by Eaton", "no its made by Detroit," you are all right all along, so stop arguing. it is very annoying.
By the way, sorry to hear about your diff. No probs with mine for 40000 miles, but i also installed it. go figure.
Way to be an arse a year later
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Old 07-17-2007, 05:55 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

digging up bones again, but just want to get to the bottom of this...



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Old 07-17-2007, 11:36 PM
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Default Re: BEWARE Eaton True Trac - bolts fall out

Oh YA Eaton Detroit Truetrac Differentials - summitracing.com

Why does it say
Quote:
Differential, Eaton Detroit Truetrac, 30-Spline, Toyota, 4Runner/ Pickup, Each
Now I am really confused. It says both

Here is EATONS website and it calls it a DETROIT
DETROIT TRUETRAC

I was thinking about one of these, as my TRD LSD just wont cut it anymore. It slips when I abuse it
I like the idea of the torsion gears
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