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  • How to get the plug out?

    How do you take out the drain plug on the rear differential of a model 20 from a 79 cj5? Looks like you have to put some type of insert in it and turn. Wondering if there is any special thing i need .
    Thnks
    T

  • #2
    I beleive it uses a 3/8" allen bit.

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    • #3
      I think it is either a 3/8" or 1/2" square drive try using your ratchet on them

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      • #4
        its a 3/8 allen just did mine the other day

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        • #5
          Originally posted by Bodeen316
          its a 3/8 allen just did mine the other day
          Or it could be a 1/2 drive.
          Mine was 1/2 drive, I replaced it with a head style that can be removed with a wrench.

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          • #6
            Thanks

            Thanks guys mine is going to need the 3/8 allen bit to get it open. I like the idea of getting something else that has a piece sticking out of it for later changes.

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            • #7
              if your taking off the diff cover too you should toss those torx head bolts for a hex head bolt...i had to use a bolt extractor on almost all mine after i broke two torx sockets...you can get zinc plated or stainless steel bolts for a nice touch also...and screw the cork gasket...cork is for bobbers and wine stoppers

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              • #8
                change the fluid?

                I'm thinking of putting the synthetic gear lube in my CJ7 1978 axles when I change the oil, etc., and wanted to see if anyone here has an opinion. Am I just wasting money, or is there a big benefit down the road.

                thanks.

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                • #9
                  I used that royal purple stuff from our host. Crazy expensive but it sure quieted everything down. I used it in the entire drivetrain. The captain's right about the cork, get rid of it if you go to a sythetic.....it will leak.

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                  • #10
                    Thanks guys

                    Wow what a simple task. I just used some 80w 90 gear oil when I changed mine. Synthetic is good but if you wheel you rig every day or weekend then stay with the regular stuff because I am sure that you will have to change more often . Good luck.
                    T

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