Quaife Limited Slip Diff

[Ron Earp]

Does the Quaife limited slip diff need any friction modifer or similar when installed in the Audi gearbox?

Ron

 

Ron,
When I did mine (with qualified help) it was a plug and play deal. The Diff needed no spacers no shims or anything special. We pulled one and threw in the other. Same lube and all's well
John

 

[Jools]

Quaife recommend Silkolene 75W90 in their ATB Diff. I recall " TRANS X "? With NO friction modifiers. Roy Smart and Dave Parker have more knowlege of different lubricants ( all be it using Renault box's) with these ATB's

 

[Ron Earp]

Audi recommends GL-4 lubericant for their transaxles, NOTHING else! Not a combination fluid like GL3, GL4, GL5 or anything else. A fellow explained it to me saying that GL-5 has twice as much molybdenum in it and would essentially come out of suspension and damage parts as particulates.

In any case, not sure about that but VW/Audi will not warranty new transxles unless GL-4 is used and only GL-4. So, I'm using Red Line GL-4 with no friction modifers as you suggest.

So, folks with Sudi transaxles might want to give this a try.

Ron

 

[Mark Worthington]

The Quaife LSD is a torque biasing unit, right? I thought that friction modifiers were only used in LSDs that use clutch plates.

 

[Jools]

According to the Quaife product guide NO friction modifiers should be used with Quaife ATB's. They recomend Fuchs Silkolene "Silktran Syn 5" an API GL4/5 SAE 75W-90. Ron i don't know how this affects your Audi GL4 warranty dilema?

 

[Ron Earp]

There isn't a warranty on mine anyhow. Mainly they say the GL-4 is for the sychros which get buggered with anything else.

R