just looked on my build sheet. says:

Corporate 9.25 OLD Rear Axle

is OLD open....not LSD?

 

Mine Says 9.25 LD, wich i thought meant Light Duty, cause i posted my build sheet and everyone said it did not have the limited slip.

You'll have to wait for parts/service or someone with a little more knowledge. Cause now i am confused again.

 

Full synthetic is superior in lubrication qualities and therefor does not need a friction modifier.

 

im confused as hell.....i would think the O in OLD meant open..but who knows.....even if i opened up my differential i wouldnt know what im looking for to be able to tell. hopefully someone can tell me what i have and what fluid i need

 

I'm Confused again too.. Here's my build sheet, see how it compares to yours.


M9 Cloth 40/20/40 Prem Bench Seat
-D5 Med Slate Gray
AFZ Quad Cab Big Horn Value Group
AHC Trailer Tow Group
APAS Monotone Paint
A55P 5.7L Eng(EZB)/5Spd A/T 545RFE(DGQ)
BAZS 136 Amp Alternator
BCQP 750 Amp Maintenance Free Battery
BRRS 4 Wheel Disc Rr Anti-Lock Brakes
CBEP 40/20/40 Split Bench Seat
CGDS Front Height Adjust Shoulder Belts
CG3S Advanced Multistage Front Air Bags**
CKES Front Seat Area Carpet
CLES Front & Rear Floor Mats
CSPS Passenger Assist Handle
CSXP Rear 60/40 Split Folding Seat
CUES Rear Underseat Compartment Storage
CUSS Overhead Console w/Trip Computer
CVHP Front Center Seat Cushion Storage
CVN Folding Flat Load Floor Storage
DGES All 5-Speed Automatic Transmissions
DGQ 5-Spd Automatic 545RFE Transmission
DHAP Lock-Up Torque Converter
DH5S Elec Shift-on-the-Fly P/Time T/Case
DJMS 205MM HD Front Axle
DMHP 3.92 Axle Ratio
DRBS Corporate 9.25 LD Rear Axle
EAGC All Gas Engine
EZB 5.7L Hemi Multi Displacement Engine
GACS Tinted Glass Windows
GFDP Rear Sliding Window
GNAS Rear View Day/Night Mirror
GNMS Passenger Side Sun Visor w/Mirror
GTSS Power Heated Mirrors, Fold-Away
GVBC All Vehicles W/Power Mirrors
GXMS Remote Keyless Entry
GXXS Sentry Key Theft Deterrent System
HAAS Air Conditioning
HGBS Dash Liner Insulation
HGFS Floor Tunnel Insulation
JAYS Instrument Cluster w/Tach
JBYS Instr. Panel Color Keyed Bezel
JCBS 120 MPH Primary Speedometer
JHAS Var Intermittent Windshield Wipers
JJAS Cigar Lighter
JJBS Dual Note Electric Horns
JJJS 12V Auxiliary Power Outlet
JPBS Power Locks
JPDS Power Windows, Driver One-Touch
JRDP Power Driver Seat
JTHP Power 6-Way Driver Seat
K4MP STRIPE/BADGE/MOLDING/COLOR
LMAS Halogen Headlamps
LNJP Fog Lamps
LPES Cargo Lamp
MBFS Bright Rear Bumper
MCMS Body Color Upper Fascia
MCTS Bright Front Bumper
MDAS Front License Plate Bracket
MF1P Bright/Bright Grille
MGAS Ram's Head Badge
MTDS SLT Badge
MUSS 4X4 Badge
MWDS Removable Tailgate w/Caliper Latches
MXBS Front Air Dam
MXCS Front Bumper Sight Shields
MYFP Bighorn Badge
NAS 50 State Emissions
NBEP Federal Tier 2, Bin 8A Emissions
NBKP EVAP Control System
NFWS 26 Gallon Fuel Tank
NHDP Heavy Duty Transmission Oil Cooler
NHMS Speed Control
NHNP Electronically Controlled Throttle
NMCP Heavy Duty Engine Cooling
NZDP Next Generation Engine Controller
PDMA Mineral Gray Met. Clear Coat
QDMS Mineral Gray Met. Clear Coat
RAAC All Radio Equipped Vehicles
RCDS 4 Speakers
RDDP Fixed Long Mast Antenna
REFS AM/FM Compact Disc Radio
RSAP Sirius Satellite Radio
SBAS Power Rack and Pinion Steering
SCFS 4-Spoke Steering Wheel
SFBS Front Heavy Duty Shock Absorbers
SGBS Rear Heavy Duty Shock Absorbers
SHAS Front Stabilizer Bar
SUAS Tilt Steering Column
TBBS Full Size Spare Tire
TBMS Tire Carrier Winch
TTJP P275/60R20 BSW All Season Tires
TZAP Goodyear Brand Tires
WGAP 20" Steel Spare Wheel
WLZC All Aluminum Wheels
WMJP Center Hub
WPAP 20" Aluminum Wheels
XA8S Non Adjustable Pedals
XBSS Pickup Box
XFHP Class IV Receiver Hitch
XFKP 7 Pin Wiring Harness
XFUS Trailer Tow w/4-Pin Connector Wiring
XZ9A Assembly Plant Part Tracking
X81S Instrument Panel Parts Module
X88S Tire & Wheel Parts Module
X95P Call SIRIUS to Activate@888-539-7474
X97P 1-Year Service Provided by SIRIUS
YAAS Build To U S Market Specifications
YGPA 2.5 Additional Gallons of Gas
ZBSP Spring - Left Rear
ZEEP Spring - Left Front
ZPSP Spring - Right Rear
ZTDP Spring - Right Front
Z6GS GVW Rating - 6700#
0FAA
0FEA
0FGA
0FMA
0FUA
1AAS U.S. Dealer Retail
171S Zone 71-Los Angeles
2TGA Customer Preferred Package 2TG
26G Customer Preferred Package 26G
3VTA Customer Preferred Discount
3XVA Big Horn Value Group Discount
4KZP 4X4 Tracking
42CP WARREN TRUCK ASSEMBLY PLANT
5I4S Four Wheel Drive (4WD)/(4X4)
5ZBS Price Class H
5ZES 6 1/2 FT. Cargo Box
5ZKS Quad Cab
5ZLS 1500 GVW

 

mine looks like that just without the numbers and letters before the option and without the hemi and 4x4 stuff....pretty similar though.

i just want to know what OLD is

 

OLD *****! .... What nobody likes Adam sandler.

LD means light duty or long d***
Chrysler calls it anti spin not lsd, think LSD is ford, posi is chevy and auto LSD is toyo, all same things. But just didn't want yall to be looking for LSD on your build sheet.

 

Is friction modifier the same as Limited slip differential fluid? I notice that AMSOIL carries a Friction Modifier, and not a LSD fluid.
And is it synthetic? I ask because i am using the Mobil 1 75W-90 GL which is synthetic, don't want to mixing a synthetic GL with a Non synthetic LSD fluid.

 

yes.
Amsoil spelled backwards is synthetic. (how many actually tried spelling it backwards?)
How many miles is the mob1 rated for?

 

Not sure, how many miles Mobil 1 is good for but it comes highly recommended. And i already use the Mobil 1 synthetic oil so i might as well go with Mobil 1 all around if i can....I was able to paste this from the website.....


Mobil 1 Synthetic Gear Lubricant LS is a supreme performance, synthetic, multi-purpose, SAE 75W-90 automotive gear lubricant designed to meet the highest level performance requirements of modern passenger vehicles in all types of operating conditions including limited slip applications, as well as, deliver outstanding power transfer performance. Compared to conventional hypoid gear lubricants, Mobil 1 Synthetic Gear Lubricants LS 75W-90 performs exceptionally over a wide range of temperatures. Mobil 1 Synthetic Gear Lubricant LS 75W-90 achieves this through a unique proprietary formulation, that deliver optimized viscosity-temperature properties together with the highest level of inherent formulation stability and protects against thermal and oxidative degradation, wear and corrosion, viscosity loss associated with premature shearing. It also can be used in extended service and for aiding in fuel economy performance.

Mobil 1 Synthetic Gear Lubricant LS 75W-90 meets the most severe API Service MT-1 and GL-5 EP gear oil service classification.


Features and Benefits

Mobil 1 Synthetic Gear Lubricant LS 75W-90 combines wax-free synthesized hydrocarbon base oils and a specially designed extreme-pressure, limited-slip, sulfur-phosphorous additive system to provide a significantly higher level of performance in rear axles and differentials versus conventional fluids. Greater film strength at higher operating temperatures, reduced fluid friction and low-temperature application down to -50ºC provides significant advantages versus conventional mineral oil formulations. It reduces wear and spalling under the high speed, high torque and high horsepower conditions in competitive racing and high performance automobiles. This unique, high technology final drive gear lubricant has demonstrated outstanding performance including; fuel economy, extended drain, long-term friction retention, low-temperature capability and improved differential/axle durability and cleanliness. Key features and benefits include:


Features
Advantages and Potential Benefits
Exceptional thermal stability and resistance to high temperature oxidation Extended gear and bearing life due to minimal deposits
Longer seal life
Potential extended oil drain/service intervals
Outstanding protection against low speed/high torque wear and against high speed scoring Capability to handle the severest driving conditions while delivering smooth efficient and reliable performance
Exceptional shear stability Retains viscosity and film strength under severe operating conditions to prevent wear
Excellent rust, staining and corrosion protection of copper and its alloys Reduced wear
Longer component life
Enhanced frictional properties Improved fuel economy and reduced operating costs
Outstanding low temperature fluidity versus mineral oils Reduced wear at start up and ease of start up even in arctic conditions
Good resistance to foaming Maintains film strength for reliable lubrication
Compatible with typical automotive seals and gaskets Minimum leakage and reduced contamination
Excellent limited-slip performance Reduced chatter and improved traction


Applications

Mobil 1 Synthetic Gear Lubricant LS 75W-90 is recommended for use in modern high performance automobiles like SUV's, Vans and Light duty trucks requiring API GL-5 and MT-1 level performance
Mobil 1 Synthetic gear Lubricant LS 75W-90 is intended for initial fill, topping-off or refilling differentials, final drives, transfer cases and other gear applications where lubricants meeting API Service GL-5 and multi-purpose or mild EP gear lubricants are recommended
Mobil 1 Synthetic Gear Lubricant LS 75W-90 can also be used in rear axles where API Service GL-4 lubricant is recommended
Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended
Where extended service intervals and warranties are required