Has anyone ran this LS before?
G2 45-2012 Track Lock Differential

 

i would go with a detroit tru trac. it is a gear driven diff, so you dont have to worry about clutches going bad like you would with that unit.

 

thanks

 

Except you can't run synthetic gear oil in that sucker I don't know how I'd act without my Amsoil

 

so what, regular gear oil has worked fine for decades.

if he wants to run synthetic, get the detroit locker.

 

the more I look I think the true trac is the way Im gonna go

 

good choice, i think it will have better street manners than the detroit locker.

 

Thr trutrac takes a mineral lube 80-90. The literature favors Valvoline.

One caveat is the trutrac is un-preloaded; meaning it's an open diff. under low traction conditions such as ice. Un-preloaded defined: It's like taking the S-spring out of Fords Traction Lock--- a wild race of one tire until there is enough grab to bias enough to the other wheel. They say a LS clutch diff is 2 to 1 in bias, and a Torsen aka Trutrac is 3 to 1. If trutrac had it preloaded, then it would be the best of all worlds. Some Torsens are.

 

True, however you can "trick" the TrueTrac into locking up by lightly applying the brakes if one wheel is spinning. I've done this a few times with mine.

HYPO

 

great info

 

FWIW I run a true trac in my 2wd F150. If I have one tire on ice and one on pavement, it may act like an open diff. If I have one tire on hard packed snow and one on pavement, it will act like a LS. And in the case of slipping on ice, tapping the brake typically works. All in all, I love my true trac for the type of driving I do.

Also, I took a road trip this last summer that took me through Moab, Utah. I did some mild off-roading, as much as my stock 2wd suspension would allow. My true trac coupled with some good AT tires left me pleasantly surprised. I went through some mild mud and sand, and I climbed rock steps large enough to scrape the underside of the truck. Not once did I lose traction. Now imagine this setup on a 4wd truck...

 

http://www.youtube.com/watch?v=ijD9cfAt9Yw

This vid illustrates the braking to set the bias. Also true for all LS differentials .

The one negative I've experienced is the quick hunting from side to side to side traction. For example: When one tire is planted on snow and the other is on ice and snow, and because of this not being preloaded, a tire can quickly race in a spin and it digs a hole. It can be too late at this point to apply the brake to get you out.

I was parked and in some fairly deep snow , and I made that mistake.
In some instances, it's best to apply the parking brake first to prevent that hunting, otherwise you can get a quick tire dig, straight down.

I thought I'd share so you know the expectations of how this works differently than the other type of LS's.