Talk:Limited-slip differential

Remove "Factory names" section
Today I removed the entire Factory Names section. There was a tag for "Unreferenced section" dated from December 2016, and today there was still not a single reference in the entire section. There was also a lot of wrong information in that section. For example, it referred to Audi's "Quattro" system, and also Hyundai's "HTrac" system as both being examples, but those are brand names those companies use to market their entire All Wheel Drive systems, and don't refer specifically to differentials. If someone wants to rebuild this section, find references for each item in the list. I'd recommend being less ambitious in the size of the list, as references for this information might be hard to find (many of them come from marketing information that would be 50-60 years old at this point, and references might be hard to find). — Preceding unsigned comment added by Impreziv (talk • contribs) 22:38, 2 February 2022 (UTC)

Section on electronic LSD
I believe this section is severely lacking in that there are multiple types of electronically controlled units. The description in the first sentence only covers a single type of electronic diffferential (like the Subaru STi DCCD) An example of another type is available on many Subaru automatics (certain trim of Subaru Legacy from 1990-2012+ among others). It uses an electro/hydraulic clutch pack to vary the torque to the rear wheels. Imagine an electronically controlled motorcycle clutch combined with a standard transfer case. It is a "differential" by technical terms even though there is only one input and one output (as opposed to the single input multi output of other differentials)

Should we also expand on how the electronics work? I know that on the subaru it is a large electromagnet driven by duty cycle to control the aggressiveness of the locking clutches

Then there is the mention of the 2011 STI DCCD. This system has been available since 1995 in Japan and since 2004 in the USA so I feel its misleading to arbitrarily list the MY11 STi.Ciper (talk) 05:07, 6 March 2013 (UTC)

Feb 2012 Rewrite
I took the liberty to re-organize and re-write this page. Most of the information is from the older page but I tried to clean up the organization a bit. The current article is still weak on references and information on the dynamics associated with LSDs (not always positive). I think some of the reused information was on the subjective side. Finally, I would prefer the article have a bit more math (something along the lines of the research papers I cited). While I'm happy to cite things like a Subaru web page for information on what type on differential Subaru uses in a car I wouldn't trust their marketing department to accurately describe the dynamic function of the differential.

One more thing, I think we should decide if this is about true limited slip differentials or a wider topic to include things like spools and lockers which aren't as well as brake based "electronic limited slip differentials" which really are chassis stability systems since they aren't actually incorporated as part of the differential itself. Springee (talk) 18:35, 4 February 2012 (UTC)


 * Lockers and the subsection spool belong on the Locking differential page. The Spool section on this LSD page needs shortened.  --Dana60Cummins (talk) 18:56, 4 February 2012 (UTC)

No argument here. Is there a separate spool page? I ask because in addition to off road use, oval racing cars often use spools. I left it in just because it was already in the article. Since there was a locking article already and I just cut the locker part. Springee (talk) 19:12, 4 February 2012 (UTC)


 * It has it's own subsection on the Locking differential page. Which is all it needs being it's the easiest carrier to understand, by far.--Dana60Cummins (talk) 19:23, 4 February 2012 (UTC)

OK, I removed the text and simply left the link you have above.Springee (talk) 00:11, 5 February 2012 (UTC)

The Benefits Paragraph
I noticed a large section of the opening benefits paragraph was removed. What do we think should be in the paragraph. The original seemed to focus on LSD's for off road use. I know some people think of LSDs in terms of performance cars. What information do we think should and shouldn't be in that opening section? I figured I would ask here rather than making edits people may not like or agree with.

I would like to see some mention of how an open diff fails with mention of both off road/poor traction conditions as well as perhaps in performance driving. Next we could mention how the LSD helps fix those issues in very short/general terms.

Other ideas? --Springee (talk) 05:36, 14 February 2012 (UTC)