Differential Fluid - How to change?

Discussion in 'RT/10 and GTS Discussions' started by slaughterj, Aug 4, 2003.

  1. slaughterj

    slaughterj Enthusiast

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    What's involved in changing the differential fluid? Step-by-step instructions appreciated :)
     
  2. Mark Red GTS Cooper

    Mark Red GTS Cooper Enthusiast

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    Very carefully :cool:)))))

    Hey man,,,,,,
     
  3. 95Viper

    95Viper Viper Owner

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    Easy
    - Put car on lift or pay $10-$15 to rent Quicklube bay
    - Remove plug with 3/8" hex allen male socket
    - Many tools for this step but I used a $10 fluid pump bought at Autozone, looks like a bike pump
    - Need two people with my tool, one inserts end into hole and moves all around while the other pumps like crazy
    - Refill with 4oz additive
    - Fill to top with about 40 oz of Mopar gear lube
    - Tighten, I think 140 "inch" pounds
     
  4. Jim Wilson

    Jim Wilson Viper Owner

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    :eek: :eek: :eek: :eek:
     
  5. slaughterj

    slaughterj Enthusiast

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    LOL!
     
  6. slaughterj

    slaughterj Enthusiast

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    Few followups:
    1. Rather than a lift, how about just jacking up the car?
    2. Tell me more about your...tool ;)
    3. What lets you know you got to 140 in-lbs?
     
  7. slaughterj

    slaughterj Enthusiast

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    Thanks! Still need to catch up again sometime...
     
  8. Ulysses

    Ulysses Enthusiast

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    You need a torque wrench in inch-lbs. They are usually made with 3/8" drive. Or you can convert by a factor of 12, for example:

    10 lbs/ft of torque is 120 lb/inches

    So for 140 lb/in, you have 11.67 lb/ft which is normally smaller than what is listed on most torque wrenches which are calibrated in lb/ft.
     
  9. Chuck 98 RT/10

    Chuck 98 RT/10 VCA Venom Member-Midsouth

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    Yes, you can do it by jacking up the car. I remove the passenger side rear wheel just so I have more room. Not required though.

    I use a vaccula brake bleeder to suck the fluid out. You'll need a compressor if you use this type of tool.

    It's also convenient to have a long "fill tube" about 4 ft X 1/2 inch O.D. with a funnel on one end. Diff fluid is very thick and takes several minutes to fill.
     
  10. slaughterj

    slaughterj Enthusiast

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    Thanks for all the info. Exactly where is the plug located? Directions from the rear please ;)
     
  11. Chuck 98 RT/10

    Chuck 98 RT/10 VCA Venom Member-Midsouth

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    Passenger side. There might be a little plastic tag on it.
     
  12. ViperJoe

    ViperJoe Viper Owner

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    I had the drill and install of a drainplug done by archer at VIR. Makes it an easy job then.
    Details in the how to section also.
     
  13. joe117

    joe117 Enthusiast

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    Here's a tip. Make sure the rear is good and hot before you try to suck the fluid out.
    Drive it for half an hour.
     
  14. slaughterj

    slaughterj Enthusiast

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    Er...you mean the car? ;)
     
  15. slaughterj

    slaughterj Enthusiast

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    Yeah, I'd like to have had that done, a bit more than I'm willing to try myself though ;)
     
  16. ViperJoe

    ViperJoe Viper Owner

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    Might think about doing it next year if you go to VIR, Archer was VERY reasonable.

    Hey did you get your car inspected?
     
  17. Big Medicine

    Big Medicine Enthusiast

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    I put mine on jacks & removed the wheels for easy access; washed them while I was at it. I didn't drive mine to heat it up & used the cheapo $10 pump from autozone for drain & fill. 1 bottle of additive & 1.5 quarts of gear oil back in. Took about an hour from 123go. Didn't use a torque wrench either; just rednecked it like Grandpa taught me long ago. You have to hold your tongue just right. (don't overtighten, just snug it & turn it a little past like your oil filter)
     
  18. slaughterj

    slaughterj Enthusiast

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    Thanks for the info.

    Yep, got it inspected at a random facility...
     
  19. slaughterj

    slaughterj Enthusiast

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    Thanks for the info, think I'll "neck" it too ;)

    Are the fluid & additive just best to get through the dealership/MOPAR?
     
  20. Chuck 98 RT/10

    Chuck 98 RT/10 VCA Venom Member-Midsouth

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    Torque specs for bolts you can't get to are listed to give you an idea of how much to tighten. "Redneckin'" it like BM's grandpa is fine.
     
  21. Big Medicine

    Big Medicine Enthusiast

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    Mopar fluids are fine; get 2 quarts of lube & 1 bottle of additive from the dealer. Put the additive in first.
     
  22. slaughterj

    slaughterj Enthusiast

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    Can someone provide a fairly precise location of the plug?
     
  23. Chuck 98 RT/10

    Chuck 98 RT/10 VCA Venom Member-Midsouth

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    Jeeze Slaughter, crawl under the car and find the damm thing. It's on the passenger side half way up the diff, forward of the axle, it takes an allen wrench. There are no other plugs you can confuse it with. One more question about it any you're buying wings next time.
     
  24. slaughterj

    slaughterj Enthusiast

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    Hey, I bought wings last time?! :)

    Thanks for the more precise location :) Now what's an allen wrench? J/K!
     

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