Anti-Spin Rear Differential Info

[bighammer]

I thought the following was worth posting here:

GET IT! Change your order now…….



The anti-spin differential is not a limited slip. It is a torque biasing differential, Quaife has built these things for years, and it looks like AAM is either using a Quaife unit, or they have copied the design. Torque biasing differentials have no clutches to wear out, and should last as long as a standard open differential. DC is using the Quaife brand units in the SRT-4 and I believe they also use them in the Viper. I have heard chatter on the board of people having problems, but I really think it is caused from improper additives, as the torque biasing differential is not a LSD you should not add any LSD additives, or use gear oil with the additives already in it. In the owners manual it recommends "GL-5 SAE 75W-90 Synthetic. Limited-Slip AAM Rear Axles DO NOT REQUIRE a limited slip additive. ”



If you want to read up on Quaife go to http://www.quaifeamerica.com/







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[MJawsman]

Looks like a Gleason Torsen unit to me. All worm gear, very positive design but not a true locker in the sense of the word. However, from what I've read they are vert streetable in the front axle in a full-time 4X4 system too.

 

[Gus's 03]

thougt id add a pic of the actual unit



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[RCMerrill]

How do I find out why my rear tires both don't spin ! Got stuck in ditch 1 rear tire was off ground when I tried to go forward or reverse only 1 front & the rear tire off the ground would spin . I tried to apply the brakes still no change whats up .

 

[DonFitzwater]

It has to do with the design of this "anti-spin" differential. It only puts power to both wheels when each tire experiences resistance. If you have one tire in the air, that's the one that will spin. No torque is being transferred to the other side. I've complained about this **** poor design since they came out. They don't work, they aren't worth the money.

It should be called the "anti spin differential, only when you have traction and don't need anti spin differential"!

 

[DonFitzwater]

Poor design of anti spin diff for people that off road. Both rear tires have to have resistance (traction) for it to work. Less traction on one tire and that one will spin.

 

[jhenderson]

IMHO it's a poor copy of a good design.

 

[JPM]

When running down the highway with a load, then pulling off for fuel or something , the anti spin rear diff seems to be chattering as I slowly go around a turn. It feels like it gets all stuck together after getting hot and running loaded in a straight line for long while, then not wanting to release. I tried some additive but it doesn't help. Should I be concerned?

 

[HHhuntitall]

Yes. Immediately pull the rear diff cover and look for metal shavings and burned oil. The worm gear design is highly susceptible to damage from minimal metal contamination or poor lubrication..... Look for visible damage through the differential openings while rotating the tire assembly.

For a visual explanation, try this video.... https://www.youtube.com/watch?v=JEiSTzK-A2A

 

[JPM]

Yes. Immediately pull the rear diff cover and look for metal shavings and burned oil. The worm gear design is highly susceptible to damage from minimal metal contamination or poor lubrication..... Look for visible damage through the differential openings while rotating the tire assembly.

For a visual explanation, try this video.... https://www.youtube.com/watch?v=JEiSTzK-A2A

The consensus is that its normal so I'm now confused

https://www.turbodieselregister.com...e-ratcheting-when-hot-after-high-speed-travel

 

[HHhuntitall]

Hmmm, Cerebrusiam knows his stuff.... I'm not sure why you wouldn't have the same axle diff....? But yes, the friction modifier was why I thought you should drain and flush. I didn't touch on that, my apologies, I was in a hurry to read through everything I'm behind on!! I'll also comment on Cerb's thread....