My first LSD trip
03-19-2009, 07:23 PM
#31
Pretty much, yes. It's a "torque sensing" kinda thing. The unit has clutch packs at the inside end of each axle. When one wheel tries to spin, as more torque is applied, the clutches bind up and cause a semi locking action allowing more power to be given to the wheel with traction. The drawback to an LSD is it's percentage of lockup. Generally, stock units have a very low percentage, usually well under 50%. The track lock, which is the brand name for what's in the Jeep, is a very poor design to begin with. It has very weak preload springs. This is done to prevent people from complaining about "chatter" from an LSD. GOOD units will actually make noise under normal usage when going around turns, because they have a higher preload on the clutch pack and it takes more to break the clutches loose to negotiate the turn. Eaton makes the Dana Powerlock, which is a very substantial replacement for the stock LSD. It has lockup typically close to 75%, which is extremely good for an LSD. Of course, it still does not compare with a locker's 100%.
03-20-2009, 10:48 AM
#34
JK Freak
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03-20-2009, 12:29 PM
#35
03-20-2009, 09:50 PM
#37
JK Super Freak
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A 2004 Jeep was produced earlier than a 2007 jeep.
I understand what was meant by the original quote and I'm not trying to pick on anyone. I'm just trying to clarify why we "slow" people were confused.
03-20-2009, 10:06 PM
#38
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There are THREE kinds of differentials available in the 2007 and up Jeep JK. 1). A standard "peg leg" open differential. 2). A limited slip differential. 3). A selective electronic locker. The lockers are only available on Rubicons and some X models that are special ordered. The X models that have the rear locker option also have the electronic sway bar disconnect as the two are part of ONE package.
The "BLD" or "brake lock differential" is a TOTALLY seperate system to SUPPLEMENT the optional differentials explained above. BLD is not a part of the differential. It works through the Jeep's ABS computer by sensing wheel slip and applying that particular brake to help "hold" that wheel from spinning and directing a more equal amount of power to the wheel with traction.
The locker available in the JK is NOT a limited slip when disengaged, like the 2006 and BACK. It is a standard open differential until you flip the switch, then is is a SOLID LOCKED SPOOL.
I hope that helped.
The "BLD" or "brake lock differential" is a TOTALLY seperate system to SUPPLEMENT the optional differentials explained above. BLD is not a part of the differential. It works through the Jeep's ABS computer by sensing wheel slip and applying that particular brake to help "hold" that wheel from spinning and directing a more equal amount of power to the wheel with traction.
The locker available in the JK is NOT a limited slip when disengaged, like the 2006 and BACK. It is a standard open differential until you flip the switch, then is is a SOLID LOCKED SPOOL.
I hope that helped.
