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Old 10-05-2011, 09:22 AM   #31
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Quote:
Originally Posted by panthermark;1629328BLD
does fit the term....well...kind off. Not a pumpkin...but serves the same purpose....almost.
So does having your buddy grab the spinning wheel and hold it so the power goes to the other side, but that's not a differential either. The thread is about differentials, not 101 ways to force power to a place it doesn't want to go.

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Old 10-05-2011, 10:02 AM   #32
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So what's your point? It isn't a type of differential, which is what the thread is about. It's a glorified traction control system which is present on most vehicles made today.
My "point" was addressing the OP's concern about not being able to order an LSD for the Rubicon. From a functionality standpoint, it doesn't really matter since there's another system in place that get the job done.

Most vehicles have traction control, but not a BLD system as part of that package. It's a Mercedes patented system that has to be licensed for use.

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Old 10-05-2011, 10:31 AM   #33
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Originally Posted by oilwell1415 View Post
So does having your buddy grab the spinning wheel and hold it so the power goes to the other side, but that's not a differential either. The thread is about differentials, not 101 ways to force power to a place it doesn't want to go.
I think the thread is about the Rubi having LSD or not.
From what I can tell, it does not have a true limited slip differential, but it does have software that mimics LSD via braking.

Here is something on BLD...and to be honest, we need to start digging into ELSD as well.
Chrysler Blog - Jeep Brake Traction Control Explained
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Old 10-05-2011, 11:28 AM   #34
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Just wondering, has anyone with the BLD system seen uneven brake wear left to right, on either the front or rear axle? I was wondering if the BLD system applying brakes to one side of a vehicle more than the other side could cause excess brake wear to one wheel only?
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Old 10-05-2011, 12:46 PM   #35
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Originally Posted by glowingghoul View Post
My "point" was addressing the OP's concern about not being able to order an LSD for the Rubicon. From a functionality standpoint, it doesn't really matter since there's another system in place that get the job done.

Most vehicles have traction control, but not a BLD system as part of that package. It's a Mercedes patented system that has to be licensed for use.
Mercedes must have the best patent lawyer in the world. GM has been doing this since at least 97, they just don't have a fancy name for it.

Quote:
Originally Posted by panthermark View Post
I think the thread is about the Rubi having LSD or not.
Hence the thread is about differentials.
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Old 10-05-2011, 01:07 PM   #36
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Originally Posted by oilwell1415 View Post



Hence the thread is about differentials.
Then you tell me....yes or no...does the Rubi axle have a true mechanical Limited Slip Differential located inside the pumpkin?
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Old 10-05-2011, 01:09 PM   #37
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Originally Posted by panthermark View Post
Then you tell me....yes or no...does the Rubi axle have a true mechanical Limited Slip Differential located inside the pumpkin?

NO
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Old 10-05-2011, 01:12 PM   #38
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NOPE, although I'm not sure about the "JESUS" jeep !


Quote:
Originally Posted by panthermark View Post
Then you tell me....yes or no...does the Rubi axle have a true mechanical Limited Slip Differential located inside the pumpkin?
Quote:
Originally Posted by daggo66 View Post
NO
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NOPE, 07 thru 11 Rubi ain't got none !

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Old 10-05-2011, 01:25 PM   #39
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^That is my take as well. Starting in 2007, with the JK's....the mechanical LSD's were removed from the Rubi's.


Now...is Chrysler mistakenly calling their BSD...or ELSD "limited slip differential" in some of their literature?
Maybe....
Or are times changing to the point where BLD/ELSD can now be considered LSD?
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Old 10-05-2011, 01:39 PM   #40
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Could be, remember when you used to say "Whats up man" ??


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Originally Posted by panthermark View Post
^That is my take as well. Starting in 2007, with the JK's....the mechanical LSD's were removed from the Rubi's.


Now...is Chrysler mistakenly calling their BSD...or ELSD "limited slip differential" in some of their literature?
Maybe....
Or are times changing to the point where BLD/ELSD can now be considered LSD?
Now unless you say "SUP", you're just out of it-

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Old 10-05-2011, 01:40 PM   #41
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I'll add a third no to the question of the Rubi having an LSD.

Where does Chrysler refer to the BSD/ELSD as an LSD in their literature? I would like to see how it is referred to before passing judgement. Calling it an LSD is different than saying it sends power to the wheel with traction like an LSD.

I don't think we need to lump them together, but times are definitely changing. The average consumer these days would rather have some complex electronic system that costs $1000 over something elegantly simple that does the same thing for $100.
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Old 10-05-2011, 01:43 PM   #42
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Quote:
Originally Posted by panthermark View Post
^That is my take as well. Starting in 2007, with the JK's....the mechanical LSD's were removed from the Rubi's.


Now...is Chrysler mistakenly calling their BSD...or ELSD "limited slip differential" in some of their literature?
Maybe....
Or are times changing to the point where BLD/ELSD can now be considered LSD?
Please, just forget this so called literature. Most of the time it's all marketing that someone cut and pasted it, adding to the Rubicon part by mistake. Unless your build sheet says it has a LSD, then it doesn't.

Let's try to keep this forum based on facts, not some random cut sheet.
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Old 10-05-2011, 01:45 PM   #43
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Originally Posted by oilwell1415 View Post
I'll add a third no to the question of the Rubi having an LSD.

Where does Chrysler refer to the BSD/ELSD as an LSD in their literature? I would like to see how it is referred to before passing judgement. Calling it an LSD is different than saying it sends power to the wheel with traction like an LSD.

I don't think we need to lump them together, but times are definitely changing. The average consumer these days would rather have some complex electronic system that costs $1000 over something elegantly simple that does the same thing for $100.
I could save a lot of time and energy if your posts automatically generate mine as well.

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Old 10-05-2011, 02:33 PM   #44
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Lockers vrs. LSD (or BLD, BTM, etc) is night versus day. With lockers, you can approach an obstacle (like a 12" log or slick rock), stop, and slowly climb over it. You have traction or you don't. No traction? Pick a better line or air down - sometimes it's just too steep. IMHO, less chance of breaking something with lockers - you don't need high rpm and speed to (hopefully) overcome an obstacle. Assuming ground clearance, you can walk over most obstacles. Nobody who has ever had lockers on a truck would ever switch them out to LSD. Perhaps another type of locker (ie Auburn vrs Detroit), but not to a LSD/Torsen, etc.
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Old 10-05-2011, 04:55 PM   #45
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Lockers vrs. LSD (or BLD, BTM, etc) is night versus day. With lockers, you can approach an obstacle (like a 12" log or slick rock), stop, and slowly climb over it. You have traction or you don't. No traction? Pick a better line or air down - sometimes it's just too steep. IMHO, less chance of breaking something with lockers - you don't need high rpm and speed to (hopefully) overcome an obstacle. Assuming ground clearance, you can walk over most obstacles. Nobody who has ever had lockers on a truck would ever switch them out to LSD. Perhaps another type of locker (ie Auburn vrs Detroit), but not to a LSD/Torsen, etc.
The question wasn't really does the Rubi come with lockers or LSD. We all know the Rubi comes front and rear e-lockers.

The question was...does a (JK) Rubi come with LSD?

The answer is no.....

However...it does come with BLD.....which in time will probably be called LSD by lazy marketing people...which in turn will trickle down to the "new" LSD.

Eventually a true mechanical LSD's will be all but forgotten about by the average consumer.....similar to the way 4WD and AWD are sometimes crossed up by those who don't know better.....especially with nanny style traction control showing up everywhere.
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Old 10-05-2011, 07:26 PM   #46
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Quote:
Originally Posted by panthermark

The question wasn't really does the Rubi come with lockers or LSD. We all know the Rubi comes front and rear e-lockers.

The question was...does a (JK) Rubi come with LSD?

The answer is no.....

However...it does come with BLD.....which in time will probably be called LSD by lazy marketing people...which in turn will trickle down to the "new" LSD.

Eventually a true mechanical LSD's will be all but forgotten about by the average consumer.....similar to the way 4WD and AWD are sometimes crossed up by those who don't know better.....especially with nanny style traction control showing up everywhere.
I don't think so it's been there all 6 model years so far. You may be new to the JK, but most of these features have been here since day one.
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Old 10-05-2011, 08:30 PM   #47
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I don't think so it's been there all 6 model years so far. You may be new to the JK, but most of these features have been here since day one.
I'm not referring to the current enthusiast Wrangler crowd specifically...but more in general with the non-enthusiast consumer. Clearly those that are into off-roading or sports cars understand mechanical LSD's.....but somoene's wife....or mother...or non-mechanical brother may not understand the nuance of a BLD system versus a mechanical LSD. Or ELSD vs BSD...or LSD vs Locking Diffs, ect... This may be more so as more non off-roaders purchase Wranglers and really don't care to know the differences.

Heck, up until I pulled a bunch of old files and articles, I could not get a straight answer on this site (or others) as to if the JK Rubi had (mechanical) LSD or not. Many thought it didn't...but no one knew for sure.

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