detroit trutrac lsd
#1
#2
Join Date: Jul 2007
Location: South Georgia/East Florida
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I don't run it, one of the two reasons I did not buy it back when I did my gears and LSD swap is because the shop I chose specifically told me that the DTT would not honor warranty if the unit was run on tires over 33". The other reason was back when I was looking into it, Detroit was in the process of being taken over by Eaton, there was a down time in manufacturing and I simply couldn't find a DTT for the Chrysler 9.25" rear end. So I went with Auburn, an LSD I had used before.
That said, I personally know guys with both 35" and 37" tires who run the DTT and have not reported any issues...
That said, I personally know guys with both 35" and 37" tires who run the DTT and have not reported any issues...
Last edited by HammerZ71; 01-27-2011 at 01:45 AM.
#3
#5
Yea I know Im flip flopping here, but been doing a ton of reading. Trutrac seems like an awesome product but it states in the manual not for tire dia larger than 32". **** on that.
Hey Hammer or Weed are u guys running the Pro series in the 9.25" chrysler? Cause I was on the Auburn Gear site and they only have the performace series listed for the 9.25" chrysler rear end.
Hammer for yours what friction modifier are u using with the lucas conventional?
Also im keeping the stock gears but is there anything else I should have changed when I have this lsd installed?
Oh well.
Last ques, what supplier did u guys use??
Hey Hammer or Weed are u guys running the Pro series in the 9.25" chrysler? Cause I was on the Auburn Gear site and they only have the performace series listed for the 9.25" chrysler rear end.
Hammer for yours what friction modifier are u using with the lucas conventional?
Also im keeping the stock gears but is there anything else I should have changed when I have this lsd installed?
Oh well.
Last ques, what supplier did u guys use??
Last edited by 03celicagts; 01-28-2011 at 10:25 PM.
#6
Join Date: Jul 2007
Location: South Georgia/East Florida
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You don't want the pro series if you use your truck on the street, the bias is too high. That would be for the track only, IMO.
I believe the last fluid change I used a bottle of Ford modifier, but I don't think there is enough difference from brand to brand to matter.
I bought mine from 4 Wheel Parts, they did my gears and price matched the Auburn and offered to install it for free IF I bought it from them and had it done when they did my gears. There ain't a whole lot more work involved to installing a LSD when you are installing gears as well.
You don't need to purchase anything else but the LSD (and fluid for the diff & RTV, obviously)...
I believe the last fluid change I used a bottle of Ford modifier, but I don't think there is enough difference from brand to brand to matter.
I bought mine from 4 Wheel Parts, they did my gears and price matched the Auburn and offered to install it for free IF I bought it from them and had it done when they did my gears. There ain't a whole lot more work involved to installing a LSD when you are installing gears as well.
You don't need to purchase anything else but the LSD (and fluid for the diff & RTV, obviously)...
#7
A little update. I did some phoning around talked to several different eaton/detroit distributors and I found out u can indeed run up to a 37" or 38" tire with the trutrac. Just to make sure I phoned up eaton differentials and spoke to one of the techs and confirmed. I was told the manual thats on the eaton site currently is actually old spec.
Even spoke with one of the guys at 4 wheel parts they confirmed this. So for anybody else wondering out there...
Even spoke with one of the guys at 4 wheel parts they confirmed this. So for anybody else wondering out there...
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#8
A little update. I did some phoning around talked to several different eaton/detroit distributors and I found out u can indeed run up to a 37" or 38" tire with the trutrac. Just to make sure I phoned up eaton differentials and spoke to one of the techs and confirmed. I was told the manual thats on the eaton site currently is actually old spec.
Even spoke with one of the guys at 4 wheel parts they confirmed this. So for anybody else wondering out there...
Even spoke with one of the guys at 4 wheel parts they confirmed this. So for anybody else wondering out there...
https://dodgeforum.com/forum/1391782-post28.html
Last edited by pcfixerpro; 02-04-2011 at 01:22 AM. Reason: added link for reference
#9
So i got the unit installed, been driving around for a few days now. Cant even tell its there. No whinning sound just nice quiet smooth operation.
However when I tested it out I found a nice straight road with nobody around. The s bound lane covered with hard pack snow and ice, N bound lane nice dry ashpault. Figured perfect time to test her out, I stopped then hit the gas. The tire on the ice started spinning, then slowed up as the tire on the pavement grabbed traction. Worked but i could hear a distinct noise coming from the diff. Are the trutracs supposed to make a whinning sound when they kickin??
However when I tested it out I found a nice straight road with nobody around. The s bound lane covered with hard pack snow and ice, N bound lane nice dry ashpault. Figured perfect time to test her out, I stopped then hit the gas. The tire on the ice started spinning, then slowed up as the tire on the pavement grabbed traction. Worked but i could hear a distinct noise coming from the diff. Are the trutracs supposed to make a whinning sound when they kickin??
#10
The one I had did make a noise when I was off roading when one of the tires was loaded with the weight and the other started spinning. As soon as I heard it I stopped. So is it normal or a good thing I dont know, but I did experience noise with it at that time. Other wise the Truetrac is SUPER smooth.