Type of Detroit locker

Hey everyone! Getting my truck locked or lsd and regeared to 4.56 within the next two weeks. This is my dd and i was wondering opinions of if i went with the detroit truetrac or the normal detroit locker! Need some help thanks guys.

 

In my experience, the Detroit locker behaves fine on the street, but this was in my old Ford. I plan on putting a Deteoit locker in my Tacoma when I regear. I've heard good things about the TruTrac to. Depends on what you want. One provided equal torque to both rear wheels at all times and the other doesn't

 

That is very true and honestly i just wasnt too sure about the hoses and wiring going to the selectable one i wasnt sure how those held up with water or anything like that. I just was under the understanding that the detroit locker was "bulletproof". But im learning new things everyday and everything helps!

 

I have a Detroit true track and love it can't tell it's there under normal driving but if it sends good power to both wheels when needed

 

I run a TrueTrac also - I really like it.

It is a better choice for a daily driver, but, if you want the added traction of a locker off-road, as long you can live with the quirks of a Detroit on the street, you will be fine.

 

Just curious, people really only ever swap out diffs if they want better traction off road. For those of you who run a truetrac (@Scott B. @Jcollins ) what benefit do you see from it when you're off road? If you could do it again, would you make the same choice or would you spring for an ARB Air Locker unit?

 

I certainly would - in fact, I did. My last 2 trucks have had a TrueTrac (OK, a Torsen - same thing, different manufacturer)

Off road traction is good - sometimes need to augment (or help) it by using a little bit of brake. But, using the brake also allows the torque converter to build more torque, so it is really a win-win situation.

Look at the off roading you plan to do. Rock crawling? A locker would probably be a better choice. Anything else? LSD. Snow and ice? LSD. (My opinion, not to start an internet war.)

I wanted a TrueTrac in the front as well, but they don't make one. It was either ARB or nothing, so I opted for ARB. However, it will remain unlocked for 99.999999% of its life.

Some of the benefits off road are is in high-traction situations - you don't have any quirks with the rear end locking/unlocking. Also, there is no forced understeer while under throttle, and not as much side slippage on ice (from both wheels spinning.)

I prefer a TrueTrac to an ARB in the rear because I always have 2 wheels driving and enough slippage to allow "chirp-free" turns on hard surfaces.

 

truetrac or arb air locker..... dont do the lunchbox auto locker for the street.

The truetrac should do fairly well especially when paired with the brake actuated auto lsd function. But it wont be as good as a full locker.

Id never want an auto locker on the street in my dd thats for damn sure.

 

Just want to start by saying THANK YOU. These are without a doubt, the two most helpful responses I've seen in the 2nd gen forum lately. Clearly, you guys took the time to write decent responses. Thank you for doing so.

I understand a bit more regarding the TrueTrac now and it makes sense. I think for my operation, an LSD like that makes a ton of sense. I do a little crawling but nothing crazy. And with the yellow wire mod, the brakes will help transfer power as you both stated. For me in my TRD Sport, anything is a BIG upgrade from the factory open diffs.

I'm surprised they don't make a TrueTrac for the front. I wonder why not? Just not a big enough market? Is there really no other one that would work?

 

I went with the detroit truetrac as I dont lift wheels very much. when I do I use a little brake pressure or the built in electronic LSD system to assist me that little bit more.
If I was to do this again I would probably still do it because it is so much more fun in every situation and never have to touch it. Now.... if i had the option of running the rear end out of the power wagon which is a truetrac with a locking function...... I would be in heaven.

It launches better, it drives better, in situations where I would have had to engage either the locker or 4wd I am still running around in 2wd. here.. I even have a little video that I made while testing the LSD out.

https://goo.gl/photos/AUFj6qd7g5LT9Vnm9

 

^I'd like to add the above post to my THANKS too

 

The only front unit made (as of 2015) is the ARB. Maybe someday that will change - I sure hope so.

 

I went with the true track because I tore the stock open diff out. But I noticed I can just cruise around in 2 wheel drive where I used to have to put it in 4 wheel. It's so quiet and you don't realize it's there when driving normal. I have noticed that when pulling my 12 ft trailer the truck feels more stable wit the new rear

 

the front has to be a selectable style of locker due to the nature of how the front ADD works in disconnecting the front axle.

 

What do you mean for the front?

 

someone stated why they dont make a trutac for the front, and its for the above reasons.

 

Can you elaborate on this? I understand the point of the statement (no LSD because of this) but I'm still unclear as to WHY that is the case. And what does ADD stand for?

 

ADD stands for automatic differential disconnect.

Essentially it disconnects the passenger side front axle from the diff to reduce drag of the front driveline and also make it so that the front driveshaft from the transfercase to the front diff can free spin / not spin.

The reason only disconnecting the passenger side front axle works to "disconnect the front driveline" is due to the open diff in the front. When rolling forward in 2wd (which means front passenger axle is disconnected) the front DRIVER side axle is still connected and applies a rotation to the spider gear inside of the front diff. The rotational force is going to take the path of least resistance and Because the passenger side is disconnected, the spider gear on that side can spin backwards rather than spinning the whole front diff and front driveshaft.

NOW. if you had an LSD or an auto locker in the front, disconnecting the passenger side front axle via ADD would prove useless as the LSD or auto locker would still spin the front driveshaft and diff. This is why a selectable locker is needed up front, so you can "disconnect" the front driveline.

 

Totally makes sense!

 

When buying the Detroit TruTrac, I'd look at that as an opportunity to re-gear. What would be an appropriate new gear ratio? I'm running larger tires (may go a little bit larger still) but nothing extreme.