Torsen Rebuild

[Z26v6]

I have a Torsen diff that's starting to slip, especially in right hand turns.....what is the best way to approach rebuild, i.e. contact Torsen vs. find a local shop, parts sources, etc?? It's in a 2001 Camaro with 3:42 diff.

[LETZRIDE]

Re: Torsen Rebuild

you sure its a torsen and not an auburn?

as far as I know torsens cannot be rebuilt, they are a worm gear system...so if it is slipping I would think that you have broken a couple spider gears...do you hear a banging when you turn at all?

[Mark42]

Re: Torsen Rebuild

I read somewhere that GM sells a rebuild kit for the Torsen unit. Don't know what is in the kit, or if it will fix your problem. My guess is the worm gears have worn to the point of jumping teeth or just wore the teeth off.

Ask you local GM dealer to see if its rebuildable. If not, I would do the salvage yard search, or, if you have the finances, just order a new Eaton Truetrack. A nice upgrade from the Torsen.

[zlexiss]

Re: Torsen Rebuild

Try switching to a gear oil without the limited slip additive, like the redline 75-90NS

[Z26v6]

Re: Torsen Rebuild

Thanks for the info.......Mark42, what makes the TrueTrac an upgrade from a Torsen? Is it actually better than a T-2R or just better than the standard T2??

[pace2006]

Re: Torsen Rebuild

The quality of the T2R has dropped in the past few years. Ask anyone involved in the Autocross scene and they'll tell you to find something else. Rebuilding a helical differential like the Torsen is going to be expensive, probably close to the price of a new unit, if not more.

Your best options for replacement are going to be either staying with the helical design like Torsen and the Truetrac, or going with a rebuildable clutch type like Auburn or an Eaton locker.

[ssms5411]

Re: Torsen Rebuild

I read somewhere that GM sells a rebuild kit for the Torsen unit. Don't know what is in the kit, or if it will fix your problem. My guess is the worm gears have worn to the point of jumping teeth or just wore the teeth off.

Ask you local GM dealer to see if its rebuildable. If not, I would do the salvage yard search, or, if you have the finances, just order a new Eaton Truetrack. A nice upgrade from the Torsen.

I know when my Dad worked for GM he had the parts dept. order a rebuild kit for my Torsen , but then I found my new Torsen Diff in storage a mecahnic gave me awhile back. So they just used all new seals and whatnot when they installed the new diff with my GM Motive 3.73's. I have never autocrossed in my car but on the street my Torsen handles very well, also the ARP stud kit and TA gridle is a nice upgrade.

[Mark42]

Re: Torsen Rebuild

Thanks for the info.......Mark42, what makes the TrueTrac an upgrade from a Torsen? Is it actually better than a T-2R or just better than the standard T2??

The Trutrac can handle higher HP and Torque values than the Torsen. What that translates to is in a 7.6" rear, with a Truetrac, you will start breaking ring/pinion gears and axles rather than breaking the differential itself.

At least that is what I read from the "clutch dumpers" on other forums.

[Z26v6]

Re: Torsen Rebuild

thanks........since mine is a v6 I'll prob stay with torsen