I just went to American Axle & Manufacturing's website and discovered that there are several options for the limited slip differential in their 1150 axle. Does anyone know which of the following limited slip differentials is in the 2004 3500 SRW and DRW configurations:

TracRite™LK
TracRite™CC
TracRite™PC
TracRite™GT
TracRite™GTL
TracRite™EL
TracRite™ECV

Thanks!


http://www.aam.com/technology/tech_p..._rearaxle.html

 

I was about to say "none of the above", but after looking at the service manual, I'm confused. In the lubrication/maintenance section they call it a "Trac-Lok" differential, but back in the axle section (page 3-145) they call it a "Trac-Rite".

After reading through AAMs descriptions I came to the following conclusions:

10.5 inch axles are a Trac-Rite PC
11.5 inch axles are a Trac-Rite GT

That seems most consistent with the descriptions of the unit in the service manual.

 

So how do you know if you have a 10.5 or 11.5?

I want to install a locking or biasing differential too. I could not find a truck with the 3.73 and anti-spin.

 

Standard output 2500 trucks without the tow package, and all 2500 gassers get the 10.5. Otherwise, you've got an 11.5.

 

So were does one buy these units?

Any others that should be considered?

 

I got a SO 2500 w/ tow and 10.5

I think the deciding factor is the auto trans gets the 10.5 and 5spd gets 11.5.

 

Gray Rider I'm pretty sure you're correct. I emailed AAM a couple months ago, but I have the email at work. I'll reply and paste their email response on Monday. . .

Vaughn

 

Maybe you can get the ID# that's stamped on the rear end housing and just give them a call 800-299-2953 they have all the info in the computer, I believe all the HO's have the 11.5's ..........

 

Tim,

We have the TracRite GT diff. in the 11.5 rear ends. There was an earlier thread on this but I don't know where it is. Nice unit.

Wetspirit

 

I seem to be loosing my limited slip. Lately I have one wheel peel. ANy others having problems/ 48 000 km.

JT

 

No problem with mine JT.

By the way are you going to add more photos to your album sometime? I am thinking about the MBRP dual exhaust and keep checking your album for more pics

Vaughn

 

jt,

Someone else mentioned getting less lockup after going to the 315"s with their increased leverage. Could that be the case with yours? Is it time for an oil change?

Wetspirit

 

leverage is the deal, the bigger the tire the less effective.

 

I have the stock tires and gears on the 03. three quaters of the mileage has been towing about 7000 #s. I did have to top up the dif when I got it home from the dealer. Maybe I put in the wrong stuff.

JT

 

the unit is a torque sensing gear driven one, so i can't see it wearing out? not a cone or clutch pac type that will wear over time. try applying alittle brake pedal.