Question on Limited Slip Diff

jmichaelsjeep · **Posted:** Wed Jun 06, 2012 11:51 am

So I have requested the build sheet from JEEP, haven't received it yet, but when I was wheeling this last weekend, I was in 2, 4full time, and 4LO at various times, I wasn't much in 4 part time.

When I got into some sand and started really needing all four wheels, it appeared from my observing club members that I did NOT have limited slip.

It appears that I have the Select Trac transfer case (noted above in the selection options I have) vs. command trac (which is the "other" option listed in my manual).

I have an 03 Liberty Limited with Select Trac. Would anyone know from this limited amount of information if I could possible have LSD and it just wasn't working OR

I was reading in my manual and it stated something about the limited slip engagin only in part time 4 hi? Also something about how to engage disengage via parking brake/ gas pedal use (not at the same time, but something about gas on, off, on to engage) hand brake to engage limited slip?
Other than the build sheet is there any way of knowing if I have the Track Loc?
Anyone know anything about this and if limited slip only works in one of the selectable options in the transfer case?

Any help would be appreciated,
Thanks!

jmichaelsjeep · **Posted:** Wed Jun 06, 2012 12:26 pm

Here is the build sheet info I just received:
Note: there is no mention of the Trac Loc (Which if I recall correctly is the LSD from the factory?)
Does full time mean that it should be limited slip? or could it still be an Open Diff?

According to our records, your vehicle was equipped from the factory
with the following:

Sales Code Description
*XJ Cloth Low-back Bucket Seats
-L5 Taupe
AHMS Convenience Group I
AJPS Power Convenience Group
APAS Monotone Paint
AWS Smoker's Group
A33P 3.7L Eng(EKG)/4Spd A/T 45RFE(DG4)
BAZS 136 Amp Alternator
BC2S 600 Amp Maintenance Free Battery
BRY Anti-Lock 4-Wheel Disc Brakes
CBFS Premium Door Trim Panel
CF5S 2nd Row Buckets, Power Fold/Tumble
CGUS Child Seat Anchor System-LATCH Ready
CG1S Next Gen Multistage Front Air Bags**
CKDP Floor Carpet
CKNS Cargo Compartment Carpet
CKTS Cargo Tie Down Loops
CK3S Plastic Swing Gate Trim Panel
CLES Front & Rear Floor Mats
CLHP Cargo Trim Panel w/Storage Net
CSAS Spare Tire Cover
CSCS Cargo Compartment Cover
CSRS Passenger Assist Handles
CSWS Driver Assist Handle
CUD Mini Overhead Console
CUFS Full Length Floor Console
CUKP Removable Ash Tray
DGBS All 4-Speed Automatic Transmissions
DG4 Multi-Speed Auto 45RFE Transmission
DHAP Lock-Up Torque Converter
DHP Selec-Trac Full Time 4WD System
DJJS Dana 30/186MM Front Axle
DMES 3.73 Rear Axle Ratio
DRAS Corporate 8.25 Rear Axle
EKG 3.7L V6 Engine
GBBS Tinted Windshield Glass
GCBS Front Door Tinted Glass
GEG Deep Tint Sunscreen Glass
GEKS Flipper Swing Gate Glass
GFAS Rear Window Defroster
GNCP Sun Visors w/Illum Vanity Mirrors
GNKP Rear View Auto Dim Mirror
GUW Pwr Htd F/Away,Drvr Auto Dim Mirrors
GVBC All Vehicles W/Power Mirrors
GXMP Remote Keyless Entry
HAAS Air Conditioning
JA2S Instrument Cluster w/Tach
JCBS 120 MPH Primary Speedometer
JHAS Var Intermittent Windshield Wipers
JHBS Rear Window Wiper/Washer
JJAP Cigar Lighter
JJBS Dual Note Electric Horns
JJJS 12V Auxiliary Power Outlet
JJMP Auxiliary 12-Volt Rear Power Outlet
JPHP Speed Sensitive Power Locks
JPS Power 6-Way Driver Seat
JPYS Pwr Windows, Front 1-Touch Down
K2XS STRIPE/BADGE/MOLDING/COLOR
K5XS STRIPE/BADGE/MOLDING/COLOR
LACP Illuminated Entry
LAZP Vehicle Information Center
LBBP Courtesy Lamps
LCDP Map/Dome Reading Lamps
LDBP Cargo Compartment Lamp
LETP Traveler/Mini Trip Computer
LHDS Headlamp Off Time Delay
LMAS Halogen Headlamps
LNJS Fog Lamps
LPSS CHMSL Lamp
MDAS Front License Plate Bracket
MFKS Body Color Grille
MLAS Body Color Fascias
MSUS Limited Edition Badge
MVCS Jeep Badge
MVDS 4X4 Badge
MWGS Roof Rack
MZLP Varvatos Badge
MZ3S Liberty Badge
NAS 50 State Emissions
NBGP Federal Tier 2, Bin 9A Emissions
NF2S 18.5 Gallon Fuel Tank
NHFS Power Steering Cooler
NHMS Speed Control
PX8 Black Clear Coat
QX8S Black Clear Coat
RAAC All Radio Equipped Vehicles
RBKS AM/FM Compact Disc Radio w/Chgr Ctrl
RCGS 6 Speakers
RDDS Fixed Long Mast Antenna
SBAS Power Rack and Pinion Steering
SCGP Leather Wrapped Steering Wheel
SDAS Normal Duty Suspension
SUAS Tilt Steering Column
TBBS Full Size Spare Tire
TBRS Outside Tire Carrier
TSAS P235/70R16 BSW All Season Tires
TZAP Goodyear Brand Tires
WKBS Matching Spare Wheel
WLDS 16X7.0 Lux Aluminum Wheels
WLZC All Aluminum Wheels
XGDP Universal Garage Door Opener
XGGS Grocery Bag Hooks
XJFS Tethered Fuel Filler Cap
XPFS Protective Coating and Remover
YAAS Build To U.S. Mkt. Specifications
YALA Executive Lease Program
YAN Active Lease Vehicle

bgcarl01 · **Posted:** Wed Jun 06, 2012 12:52 pm

The Trac-loc should work in all the transfer case ranges as it's not actually concerned with the transfer case in any way. it's in the rear axle, which is alway's powered. You could alway's jack up the rear end completely off the ground and spin the wheel on one side. If it spins opposite wheel other way, it's open. Mine's open and from what most people say, the Trac-loc is better than nothing, but not that great.

KJOHIO · **Posted:** Thu Feb 11, 2016 3:47 pm

You'll have an LSD if your jeep has the Off-road group. HD cooling, Clutch fan, gas tank skid, transferase skid, front suspension skid, trak-loc which is the LSD, and HD suspension.

WWDiesel · **Posted:** Thu Feb 11, 2016 5:54 pm

Corporate 8.25 Rear Axle is a corporate Chrysler OPEN differential and yours is a 3.73 Rear Axle Ratio, not a limited slip Trac-lock according to your build sheet!
The rear differential operation has no connection with the operational mode selected on the transfer case! :!:

Automatic single brake operation to enhance traction did not start until the 2006 models. :wink:

jeeptorino68 · **Posted:** Tue Feb 16, 2016 4:57 pm

if you have a factory installed select trac (NV242) you could not get the limited slip rear axle.
if you have the command trac (NV231) you could option the limited slip rear axle.

Question on Limited Slip Diff

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