Ok if the lockrights locker is garbage, anybody on this forum ever try out the DET187C-172A DETROIT LOCKER? I plan on enjoying my truck to its full potential this summer and planning on some 4x4 trips up in the mountains. So I dont mind shelling out some dough now on a quality part.

But my only concern is just how streetable is this locker? I dont really do much towing, but lets say I want to trailer my car to a competition is having a rear locker going to make it real sketchy to drive?

Another ques would be when comparing the stock lsd vs the trutrac how much better is the trutrac for 4x4in??

 

I don't think so and remember, has to be synthetic. I honestly don't know if you can get non-synthetic 75W-140 anyway - closest they have is 85W-140. And if you get a Detroit Locker, I don't think you need the additive either since they're not clutches. Someone correct me if I'm wrong here.

 

Detroit lockers work very well off-road, but are not very streetable. You'll get ratcheting around turns and will tend to wear rear tires and rear components (hubs, etc.) much more quickly.

This "potential" off-road is going to be somewhat limited to start with if you have a 1500 with it's IFS since you have no way of limiting slip in the front, leaving you in essence a 3 wheel drive truck to start with.

If you are hell bent on locking the rear end and this truck is anywhere near a daily driver then the only right way to do it would be using a selective locker in the rear. But you better have a charge card with a high limit if you can find one made for the 9.25" rear end.

Selective lockers are the shizzit, all the benefits of an open diff when they are off, all the benefits of a true locker when you turn them on...


Short of that, you could always use a LSD with a bias on the higher end of the scale. Just remember, the higher the bias, the less streetable it would be...

 

Yea I sold my winter beater. So my trucks winter dd and my celicas summer dd. So I need something thats still ok for city driving.

Oh ok u got me sold, lockers not for me then. Basically im looking to rid myself of the pos factory lsd and clips, and find a more aggressive lsd for offroading. Does the trutrac have a bias on the higher end of the scale? Thats what im looking for.

 

https://dodgeforum.com/forum/3rd-gen...p-defined.html

 

Hey man thanks a bunch for the write up. I think im going to get a TruTrac. Has a decent bias ratio but not overly aggressive, and low maintenace. Works for me. Now time to find the best supplier.

 

One of the popular LSD's actually calls for 80W-90 conventional and they warn against synthetics. They won't warranty their unit if you use synthetic. I "think" it is Eaton or Auburn. It pops up now and then because of the OE 75W-140 synthetic and then the aftermarket mfg calling for 80W-90 conventional.

 

It's Auburn. I was a royal pain in their side when I bought mine and wanted to run RP in the rear diff, especially because I just spent big $ on 4.56 gears. I had conversations via email with engineers there and verbal conversations with guys at their booths at more than one truck show.

I run Lucas conventional in the rear and change it every 15k and RP in the front and change it every 30k. They claim that synthetics don't allow the clutch packs to grab properly even if a friction modifier is used.

I actually wanted to try a TruTrac in my 3rd Gen even though the Auburn I had in my 2nd Gen performed flawlessly the whole time I had it. Problem was two-fold for me though. They don't (or at least didn't at the time) recommend running tires any larger than 33" with the TruTrac and Detroit was in the process of being bought out by Eaton then and there were no TruTracs for the Chrysler 9.25 to be found anywhere and the word I got from Eaton was it would be about 4 months before production would re-start. I had gears in hand and didn't want to wait that long.

Aside from the fluid issue, I can't complain. The Auburn is doing exactly what it's supposed to, locks up when I need it and I don't know it's there when I don't...