New to me 1500

[NewMember360]

I am a new owner of a 1999 ram 1500 4x4. Hope im posting in the right spot. The previous owner said the transfer case, front and rear diff fluids have never been changed (130k miles). Im gonna change these asap, but i dont know what to use for them

front diff........75w90? its a dana 44 i think
rear diff.........75w90?
transfer case..???????????

I will be towing a bit, nothing heavy.

And how much fluid should i buy to get these done?
thanks in advance.

 

[ramhunter9]

not sure on a dana axle, but we have some smart 2nd geners on the forum that will chime in .

and welcome to RF

 

[OklaHemi]

welcome to rf

 

[Bigtman07]

Well according to the manual and a little personal experience.

Front Axle lubricant is any SAE 75W-140 synthetic gear oil that meets MIL-L-2105C and API GL 5 quality specifications.
Rear Axle lubricant is any SAE 80W-90 gear oil that meets MIL-L-2105C and API GL 5 quality specifications.
Axles intended for heavy-duty or trailer tow should use SAE 75W-140 SYNTHETIC API GL 5 gear lubricant.
Rear Limited slip Trac-lok and Vari-lok axles require Chrysler Friction Modifier 4318060.

That is similar to what the book says. I'll double check when I get home to the truck.

As for the Transfer case Just the usual at+4. Same stuff you have in the tranny. I'll clarify when I get home but hope this helps to get you started.

Btw Welcome To RF!

 

[ramhunter9]

tony good info ,way to help out other members .... i like it , your actions on this sight are noted .

now if you would only be a supporting member ..lol

 

[Bigtman07]

Workin on it RH. lol Thanks for the compliment. I do what I can.


And to clarify with the manual. The Transfer case fluid is ATF+4 and depending on the type of transfer case will decide the amount of fluid here is a chart for the transfer case.

NV231 HD 1.2 L (2.5 pts.)
NV241 2.18 L (4.61 pts.)
NV241 HD 3.08 L (6.51 pts.)

Here are the capacities of all the different rear ends and dana's. Once you figure out what one it is you should be good to go. This all comes straight out of the service manual. So I would think it's as accurate as you can get lol. Hope this all helps. Don't be afraid to ask more questions if I confused ya.

REAR AXLE
9-1/4 inch 2.1 L (4.5 pts.)
248-RBI(2WD) 3.0 L (6.3 pts.)
248-RBI(4WD) 3.4L (7.0 pts.)
267-RBI(2WD) 3.3 L (7.0 pts.)
267-RBI (4WD) 3.6L (7.5 pts.)
286-RBI (2WD) 3.2 L (6.8 pts.)
286-RBI (4WD) 4.8 L (10.1 pts.)
REAR AXLE—LIMITED SLIP DIFFERENTIAL
9-1/4 inch 2.2 L (4.7 pts.) 6
248-RBI (2WD) 3.0 L (6.3 pts.**)
248-RBI (4WD) 3.4 L (7.0 pts.)
267-RBI 3.3 L (7.0 pts.**)
267-RBI (4WD) 3.6 L (7.5 pts.)
286-RBI (2WD) 3.2 L (6.8 pts.**)
286-RBI (4WD) 4.8 L (10.1 pts.***)
** Include 0.05 L (0.25 pts.) friction modifier.
*** Include 0.19 L (0.4 pts.) friction modifier.
6 Include 0.1 L (0.2 pts.) friction modifier.
**** 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 and refill procedure.

 

[Micchi]

Well according to the manual and a little personal experience.

Front Axle lubricant is any SAE 75W-140 synthetic gear oil that meets MIL-L-2105C and API GL 5 quality specifications.
Rear Axle lubricant is any SAE 80W-90 gear oil that meets MIL-L-2105C and API GL 5 quality specifications.
Axles intended for heavy-duty or trailer tow should use SAE 75W-140 SYNTHETIC API GL 5 gear lubricant.
Rear Limited slip Trac-lok and Vari-lok axles require Chrysler Friction Modifier 4318060.

That is similar to what the book says. I'll double check when I get home to the truck.

As for the Transfer case Just the usual at+4. Same stuff you have in the tranny. I'll clarify when I get home but hope this helps to get you started.

Btw Welcome To RF!

Great info. I haven't found the capacity for the front, not sure where I would find it. I have a '99 Sport 1500, would this be listed on the tag under the hood?