I have been searching and reading on the forum, but I am hoping someone will reply so I can get everything answered in one spot. I have a 2003 Ram 1500 QC 4X4, want to change both diff. oils as well as the transfer case. I know about the additive in the rear diff's with lsd, but I don't have a lsd. I have found a lot of posts with the different oils people are using. What I can't findare the quantities, and from what I see it isn't in the manual either (why they don't list the diffs. and the transfer case in the fluid capacities section of the manual is beyond me ). I need to know how much of each to buy. Could someone please let me know.

 

they don't mention quantities in the manual cuz it's not an oil that you are supposed to change for regular maintainance. I believe you are only supposed to change those if there is a leak or some sort of problem. check that manual again, i believe that's what it says.

 

Taken from my 03 Service manual.
Hope this helps?

Al.

DESCRIPTION - TRANSFER CASE

Recommended lubricant for the NV241 GENII,

NV271, NV243, NV244 GENII, and NV273 transfer

cases is Mopar

Fluid

TRANSFER CASE
NV241 GENII 1.6 L (3.4 pts.)
NV243 1.6 L (3.4 pts.)
NV244 GENII 1.6 L (3.4 pts.)
NV271 1.89 L (4.0 pts.)
NV273 1.89 L (4.0 pts.)

FRONT AXLE

²

²

75W-90

FRONT AXLE ± .03 L (1 oz)

C205F 1.66 L (3.5 pts.)

9 1/4 AA 2.25 L (4.75 pts.)

REAR AXLE

²

9 1/4 - Mopart Synthetic Gear Lubricant 75W-

140

²

10 1/2 AA - Mopart Synthetic Gear Lubricant

75W-90

²

11 1/2 AA - Mopart Synthetic Gear Lubricant

75W-90

NOTE: Trac-Lok

T differentials require Limited Slip

Additive in the lubricant. Trac-Riteâ„¢ differentials

DO NOT require Limited Slip Additive.

DESCRIPTION SPECIFICATION

REAR AXLE ± .03 L (1 oz)

9 1/4 2.32 L (4.9 pts.)***

10 1/2 AA 2.25 L (4.75 pts.)

11 1/2 AA 3.62 L (7.65 pts)

*** With Trac-Lok add 118 ml (4 oz.) of Limited Slip

Additive.

** Includes 0.9L (1.0 qts.) for coolant reservoir.

*Nominal refill capacities are shown. A variation may

be observed from vehicle to vehicle due to

manufacturing tolerance

 

From the owners manual:
NV273 1.89 L (4.0 pts.)
-----------------------------------------*** With Trac-Lok add 118 ml (4 oz.) of Limited Slip Additive.

 

Thank you. How do I know which transfer case I have?

 

what's the bull****? are you saying they should be changed?

 

There should be a tag on it.

 

Sure am.
Anyone who thinks the gear oil will last forever in "normal driving" is retarded.
Just like ball joints, tie rods, and like parts they design without grease fittings. "Lubricated for life." One thing they forget to mention: their life span is half of those with fittings.
Such a pain to get the grease gun out. Getting on the ground to reach those fittingsmight ruin some guys Abercrombie jeans.

 

There is a tag at the end of the transfer case facing towards the rear of the truck with a code on it.
It's stamped on a round metalic disc.

Both front and rear diffs need to have fresh fluid EVERY 15000 miles.

ESPECIALLY those with the LSD.[:@][:@][:@][:@]
Without this periodic (read here "totally over the top") service interval, there is no way for you to see if Dodge hasn't left you a little present in the bottom of the pumpkin....................yep you guessed, the DREADED clutch pack retainingclips commonly called incorrectly the "C clips"[]


Al.

 

dodgesays the diff fluid needs to be changed every 15,000 miles, im pretty sure I saw that in my manual also. I get a service flyer in the mail every month and it usually has a coupon in it to change the fluid in both diffs and transfer case for like $189, so it must be pretty important