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differential fluids

Discussion in 'Ram Trucks' started by dodgegmc1213, Oct 6, 2014.

  1. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,002

    ok another question for you dodge guys. first time changing the fluids but does anyone know how many liters of gear oil goes in the front and rear axles on a 04 ram 2500? im going to use lucas gear oil but also want to add lucas oil stabilizer, just don't know how much stabilizer to put in with the gear oil.

    also would any of the high mileage transmission fluid (from auto zone or advance) work in theses trucks and how much does that take as well?

    I posted this on a ram forum in august and only got 1 response to just go to the dealer, so thought I ask here

    thanks
     
  2. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,672

    http://www.dodge.com/bodybuilder/2004/docs/dr/fc.pdf
     
  3. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,002

    thanks kimber!
     
  4. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,672

    Don't forget friction modifier if you have a limited slip diff.
     
  5. jhenderson9196

    jhenderson9196 Senior Member
    Messages: 615

    Not a clutch type differential. No additive required.
     
  6. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,672

    Says right on PDF if it has trak-lok to add friction modifier. See note 2.
     
  7. jhenderson9196

    jhenderson9196 Senior Member
    Messages: 615

    Trac-loc was a limited slip unit installed in Dana differentials. 03 and up Dodge 2500 trucks use AAM differentials that do not use clutches. Check your info. Report your mistake.
     
  8. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    I'd put it in either way it won't hurt anything. Some synthetics have modifier in them
     
  9. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,672

    So it is my mistake that dodge put out info that you don't agree with?


    OP lets make this easy, Make sure you inspect the diff while you have the cover off.
     
  10. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,002

    next time im under the truck ill see if there is a tag or #s on it
     
  11. linckeil

    linckeil PlowSite.com Addict
    from CT
    Messages: 1,265

    note 2 in the PDF about friction modifier applies only to the 9.25" rear differential - which is a 1500 axle. This is a chrysler axle that shares the same trac-loc as a dana 44 unit.

    the 10.5" and 11.5" are both designated as "AA" (short for american axle manufacturing or AAM) - which are 2500 and 3500 axles.

    so in short, the file tells you to add friction modifier to a 9.25" rear if it has the trac-loc, and add nothing to the 10.5" and 11.5" rears.
     
  12. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 8,569

    Correct,
    and the AAM requires a synthetic lube.
    Note: the AAM does have a shoe on ether side.
    If you experience any shudder add some friction modifier.
    But,no friction modifier is needed, but if the gear lube all ready has it, in it, it won't hurt it at all, it's just not needed.

     
  13. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,002

  14. jhenderson9196

    jhenderson9196 Senior Member
    Messages: 615

    Doesn't appear to be synthetic.
     
  15. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 11,535

    Agreed......if it was it would say so.
     
  16. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,002

  17. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 8,569

    could you use dino oil?
    probably.
    I think it will only effect your millage and it could be slow to engage(lock up) as it is a gear driven unit the thick fluid could effect it's operation until it warns up.

    ram already has a 15k change interval that sounds excessive when aam went to synthetic in an attempt to lengthen oil change intervals.
    http://www.machinerylubrication.com...-discovers-advantages-of-on-site-oil-analysis

    the same axel in a different make touted no change intervals (lifetime)
     
  18. MajorDave

    MajorDave Senior Member
    Messages: 943

    By looking at the tag on the differential - what am I looking for --- obvisouly a series of numbers, but are there codes? Two I am referring to is:

    02 F-350 (Just bought the cover and gasket. DId not research amount, but said to fill to top of fill-hole)
    96 Dodge 1500
     
  19. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    They usually say what to put in them on tag

    They don't say if you need modifier or not. I usually put it in either way it won't hurt it if you don't need it
     
  20. MajorDave

    MajorDave Senior Member
    Messages: 943

    Well if it wont hurt - makes sense. Mobil 1 Synthetic ATF? What brand is the modifer - what's it called??