True-trac Possible Problem~!!!~

honeykeeper

New Member
When I dumped the rear differential oil at less than 2K after installing the True-Trac I noticed it was extremely dark.....no metal shavings but too dark I thought.



I noticed with my truck on the lift/rack and in neutral:

When I rotate the right rear wheel clockwise and counterclockwise the driveshaft responds rapidly = NORMAL.

When I rotate the left rear wheel clockwise and counterclockwise there's a lot of play and a loud pop that doesn't seem right?!!
<img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/009.gif' class='bbc_emoticon' alt=':smt009' /> <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/017.gif' class='bbc_emoticon' alt=':smt023' />

Is this "NORMAL" while in the open differential mode of True-Trac on the shop lift?



Lately I've noticed when I let off the gas there is a pop that seems to be coming from the rear differential area although it's hard to tell exactly while driving.

I ordered new Spicer greasable U-joints and the engine/transmission rubber insulator mount (now cracked) and will change them next.

I'm gong to call Alex at PORC where I bought the True-Trac and the True-Trac folks and ask him/them if this is "NORMAL" or if it sounds like there may be a problem with the True-Trac.



Can someone or everyone with TrueTrac jack the rear wheels off the ground and perform this test and let me know?....I would appreciate hearing what you find.

Also anyone with a OEM differential setup please try the test and let us know what you find.




I'll post up what I find as well. I hope this is a false alarm!... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/004.gif' class='bbc_emoticon' alt=':smt004' />

I love the True-Trac and will do whatever it takes to get it right .....if it's not!........ <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/003.gif' class='bbc_emoticon' alt=':smt019' />



ADDENDUM:



I noticed with my truck on the lift/rack and in PARK :

When I rotate the right rear wheel clockwise the opposite wheel turns counter clockwise = NORMAL.

When I rotate the left rear wheel clockwise the opposite wheel turns counter clockwise = NORMAL.

No metal grinding sounds are heard in the system from wheel to wheel when I rotate them.

The left side has a little more play than the right side but not much.
<img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/009.gif' class='bbc_emoticon' alt=':smt009' /> <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/017.gif' class='bbc_emoticon' alt=':smt004' />



I then tried the operation like in the beginning of the post......in Neutral and it seemed ok this time!



Question: Is this "NORMAL" while on the shop lift?

Also anyone with a True-Trac or OEM differential setup please try the test and let us know what you find.



Maybe mine is "NORMAL" just want to know for sure! <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/003.gif' class='bbc_emoticon' alt=':smt019' />
 

converted

New Member
I have an ez locker in my jeep rear end and it clicks on both wheels when rotated......hope all is well...is the tru trac limited slip?
 

honeykeeper

New Member
[quote name='converted' post='140584' date='Feb 12 2009, 09:32 PM']I have an ez locker in my jeep rear end and it clicks on both wheels when rotated......hope all is well...is the tru trac limited slip?[/quote]

Yes it's a LSD unit. Thanks!
 

honeykeeper

New Member
[quote name='converted' post='140586' date='Feb 12 2009, 09:54 PM']Does this help??
[/quote]

Thanks.......I have the True-Trac owners manual too.

That was done in the beginning and checked out ok. It works properly other than the possible pop and the play on the left side.

It's going to take some folks checking and comparing the "action" or "play" from left to right sides or at least some phone calls for me to think mine is ok.
 

mcginkleschmidt

Active Member
Keeper, there was a long thread over on CT started by Papa C that discussed some problems with the True-Trac. Following is the first sentence of that thread: "I spoke with Brent, EXT 6762 at Eaton and he gave the following recommendations for our installs and TrueTrac maintenance"



You might want to talk with Brent as he seemed to be forthcoming.



Link to thread: http://www.clubtitan.org/forums/showthread...light=true-trac
 

krh2

Administrator
Tom, my rear end is up in the air now.. No play when turning either wheel. No noise either... While I have it off the ground anything else you want me to test?
 

krh2

Administrator
[quote name='mcginkleschmidt' post='140600' date='Feb 12 2009, 05:55 PM']Keeper, there was a long thread over on CT started by Papa C that discussed some problems with the True-Trac. Following is the first sentence of that thread: "I spoke with Brent, EXT 6762 at Eaton and he gave the following recommendations for our installs and TrueTrac maintenance"



You might want to talk with Brent as he seemed to be forthcoming.



Link to thread: http://www.clubtitan.org/forums/showthread...light=true-trac[/quote]Meh, hogwash.... I think..... Synthetic 75-140 for me....
 

mcginkleschmidt

Active Member
[quote name='krh2' post='140605' date='Feb 12 2009, 09:36 PM']Meh, hogwash.... I think..... Synthetic 75-140 for me....[/quote]



I agree, but I wasn't limiting my reading to the first recommendation that was stated in the thread. It seemed that Brent was initially unaware of some of the True-Trac issues in it's use with Titans. If you read through the whole thread, Brent appeared to listen and show concern for the issues that were brought to light. Papa D had several phone conversations with Brent and the information he reported was very educational.



Brent's recommendation about the lower viscosity diff lube represented about 0.0001% of the information in the thread. Please don't stump your toe on that first recommendation about viscosity and go on the the meat of the subject later in the thread. I understand why he recommended the lube, because the TT was tested with the dino 75W-90 lube, and then I discounted that point the same as you.
 

krh2

Administrator
[quote name='mcginkleschmidt' post='140609' date='Feb 12 2009, 06:54 PM']I agree, but I wasn't limiting my reading to the first recommendation that was stated in the thread. It seemed that Brent was initially unaware of some of the True-Trac issues in it's use with Titans. If you read through the whole thread, Brent appeared to listen and show concern for the issues that were brought to light. Papa D had several phone conversations with Brent and the information he reported was very educational.



Brent's recommendation about the lower viscosity diff lube represented about 0.0001% of the information in the thread. Please don't stump your toe on that first recommendation about viscosity and go on the the meat of the subject later in the thread. I understand why he recommended the lube, because the TT was tested with the dino 75W-90 lube, and then I discounted that point the same as you.[/quote]



I have been following that thread too.. Other than bolts backing out I see no other issues. When I got my TT I asked the tech doin the install and he said Eaton says go with what OEM called for... Am I missing sumfin? <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/017.gif' class='bbc_emoticon' alt=':smt017' />
 

honeykeeper

New Member
[quote name='krh2' post='140604' date='Feb 12 2009, 11:34 PM']Tom, my rear end is up in the air now.. No play when turning either wheel. No noise either... While I have it off the ground anything else you want me to test?[/quote]

Did you install the "sight" filter yet?.....I finished my part B mod........works great! lol..... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/003.gif' class='bbc_emoticon' alt=':smt017' />
 

mcginkleschmidt

Active Member
[quote name='krh2' post='140611' date='Feb 12 2009, 10:01 PM']I have been following that thread too.. Other than bolts backing out I see no other issues. When I got my TT I asked the tech doin the install and he said Eaton says go with what OEM called for... Am I missing sumfin? <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/017.gif' class='bbc_emoticon' alt=':smt017' />[/quote]



No, I don't think you are missing anything? Eaton recommends one lube, Nissan another, but I don't believe the difference is that important. I'm also following the Nissan recommendation.
 

krh2

Administrator
[quote name='honeykeeper' post='140616' date='Feb 12 2009, 07:09 PM']ok we're playing phone tag now...... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/014.gif' class='bbc_emoticon' alt=':smt003' />[/quote]





[quote name='honeykeeper' post='140617' date='Feb 12 2009, 07:26 PM']Here's a start... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/001.gif' class='bbc_emoticon' alt=':smt017' />[/quote]



Good to talk to you tonight. Hope I helped. You dont sound like I thought. My inlaws live around Gifford NC and have a heavy accent. You, my friend, sound Californian. LOL "Keep" us posted bro. I really think you have a bad TT not a bad install. JMO.
 

honeykeeper

New Member
[quote name='mcginkleschmidt' post='140600' date='Feb 12 2009, 10:55 PM']Keeper, there was a long thread over on CT started by Papa C that discussed some problems with the True-Trac. Following is the first sentence of that thread: "I spoke with Brent, EXT 6762 at Eaton and he gave the following recommendations for our installs and TrueTrac maintenance"



You might want to talk with Brent as he seemed to be forthcoming.



Link to thread: http://www.clubtitan.org/forums/showthread...light=true-trac[/quote]



Thanks mc.......Alex and Eaton are on the list to call after my morning appointment at the machine shop for another project that flies!
 
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