Dana 20 shifter rattle

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  • KaiserMan
    I got the Willys....
    • Jun 21, 2005
    • 8702

    Dana 20 shifter rattle

    Two out of three of my Jeeps have a rattle coming from the shift lever at speeds of around 50MPH +. I haven't had a chance to pull one out and dig into the shift box to see what's causing it. Anyone else fixed this issue before?

    This is on the 66-79 style shifter on the passengers side btw.
    Thomas Russell
    1987 Cherokee Laredo 2-Door 4.0/AW4
    1971 Gladiator
    J2000 Platform-Stake Dump 350/T18

    1970 Gladiator J3000 3407Z Camper Truck 350/T18
    1968 Wagoneer Custom 327/TH400

  • J20 project
    304 AMC
    • Dec 27, 2000
    • 2487

    #2
    Most of mine did as they got older. Rhythmic vibration as a result of probably gearbox and driveshaft slip yoke wear. Thatcombined with looseness in the shifter assay allows it to show up that way in the shifter.
    J20
    BP Drivetrain...........

    Driveshafts for all Jeeps, Constant velocity rebuilds, Replacement, Repair
    775-537-7918

    https://www.facebook.com/BPShafts/

    Putting this back up. "Someone is gonna have to crawl under the rig"

    Comment

    • FSJunkie
      The Nigel Tufnel of the FSJ world.
      • Jan 09, 2011
      • 4040

      #3
      I don't think quiet operation at highway speeds was a design consideration of a Jeep shifter in 1962.

      Mine does it at certain speeds, especially with the air conditioning on. I used to shove a piece of foam between it and the underside of the dash to make it shut up on long trips.
      '72 Jeep Wagoneer Custom, 360 V8

      I love how arguements end as soon as Ristow comments. Ristow is right...again.

      Comment

      • KaiserMan
        I got the Willys....
        • Jun 21, 2005
        • 8702

        #4
        My dually with 25K miles doesn't do it, neither did my 71 when I bought it with 40K miles. Seems like it's a wear issue with mileage.
        Thomas Russell
        1987 Cherokee Laredo 2-Door 4.0/AW4
        1971 Gladiator
        J2000 Platform-Stake Dump 350/T18

        1970 Gladiator J3000 3407Z Camper Truck 350/T18
        1968 Wagoneer Custom 327/TH400

        Comment

        • Gladiator4x4
          232 I6
          • Apr 20, 2018
          • 26

          #5
          Do you have the single lever with the u shaped pattern? There is a grease zerk on the bottom side of the shift box may have to dig through some mud to find it. Look at the ends of your box where the linkages stick out, one of the brass bushings fell out of mine and link was just hanging in the bore.

          Comment

          • KaiserMan
            I got the Willys....
            • Jun 21, 2005
            • 8702

            #6
            Originally posted by Gladiator4x4
            Do you have the single lever with the u shaped pattern? There is a grease zerk on the bottom side of the shift box may have to dig through some mud to find it. Look at the ends of your box where the linkages stick out, one of the brass bushings fell out of mine and link was just hanging in the bore.
            I've been pumping mine full of grease regularly, but never though to take more than a passing look at the rest of the under side of the box. I'll give it a good look over the next time I have it on the left and take a look at the bushings.

            I've got some NOS gaskets for the lower cover of the shift box, I may just pop it apart and dig around.
            Thomas Russell
            1987 Cherokee Laredo 2-Door 4.0/AW4
            1971 Gladiator
            J2000 Platform-Stake Dump 350/T18

            1970 Gladiator J3000 3407Z Camper Truck 350/T18
            1968 Wagoneer Custom 327/TH400

            Comment

            • threepiece
              350 Buick
              • Sep 17, 2005
              • 1433

              #7
              Originally posted by KaiserMan
              Two out of three of my Jeeps have a rattle coming from the shift lever at speeds of around 50MPH +.

              This is on the 66-79 style shifter on the passengers side btw.
              My J20 has/had a rattle at those speeds. I always thought it was the transfer case but didn't think to check the shift lever as I was driving it.

              Something let go in the drive train recently, I noticed the day before it let go the sound of the rattle had changed slightly. I have removed the trans (T18) and transfer case and am installing one from my old Cherokee.

              This thread has prompted me to look closer at the shifter while it is on the bench, I don't see any looseness or anything I consider unusual. Can you actually stop the rattle when the lever is held?

              Here is a link https://www.shopfloortalk.com/forums...ad.php?t=49387 of a thread that shows a hoist that I made to ease the removal and installation. I may post a separate thread showing the link for others.
              FSJ Hybrid build thread: http://www.shopfloortalk.com/forums/...ad.php?t=43332
              We are Borg, but we don't know it yet.
              We are being assimilated but we don't know it yet.
              Resistance is not futile yet.
              Are you and your children connected yet?

              Comment

              • KaiserMan
                I got the Willys....
                • Jun 21, 2005
                • 8702

                #8
                Originally posted by threepiece
                Can you actually stop the rattle when the lever is held?
                Yes, light pressure held against it in either direction makes it stop.
                Thomas Russell
                1987 Cherokee Laredo 2-Door 4.0/AW4
                1971 Gladiator
                J2000 Platform-Stake Dump 350/T18

                1970 Gladiator J3000 3407Z Camper Truck 350/T18
                1968 Wagoneer Custom 327/TH400

                Comment

                • timwiller
                  232 I6
                  • May 15, 2014
                  • 90

                  #9
                  sloppy shifter

                  had the same with mine. guts are worn.
                  somewhere in the forums dude takes the shifter housing apart and does some creative welding{add material} and grinding on the parts that are worn to restore them. claimed it worked.

                  there are no parts, when they are worn out that's it

                  anyway, get a twin-stick.

                  .
                  1966 J-3600 Gladiator, 304 AMC, T-18/D-20 twin stick, D44/D53, custom mandrel bent magniflow exhaust

                  Comment

                  • bufurd
                    327 Rambler
                    • Apr 13, 2008
                    • 584

                    #10
                    Pull the 4 little bolts on top, pull the cover and take a shim or two out that'll tighten it up.
                    Current fleet
                    Abner-73 He started it all in 1979 (plow truck now)
                    Bufurd-69 Fixed up to take Abners place as DD
                    Delta-70 Built for fun, 455 Olds, T-18, D-20, 4:10 gears
                    Humpty-74 J-20 4BT, NV4500, 30+MPG
                    07 JK Wife bought new...
                    13 Grand Cherokee Trail Hawk, wifes new ride

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