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  • Greasing slip yoke

    Ok so I want to grease my slip yoke to try to get rid of the clunk noise. I am kind of confused about how to get everything apart. I took the 4 bolts out by the U joints in the rear. What do I do next. Do I just push the shaft towards the front of the truck or is there something else I have to do. Also what exactly do I mark so that it will line up again when I put it back together. Anything else? Pics or diagrams would be greatly appreciated.

    Thanks for the help.

  • #2
    Re: Greasing slip yoke

    Curious to see some good pointers and feedback to as I will be doing this to mine and a friends soon. Mine doesn't really need it done but my friends chirps every time he accelerates from a stop. He had no idea what was causing it until I mentioned it's a common thing on our trucks. Now that he knows there is a cure, I'm now on the hook to fix it for him as he's not the type to crawl under a truck and turn a wrench, lol.
    Last edited by Tweaks; 06-25-2011, 09:45 PM.
    00 RCSB Z71/JBA cat-back/Z71 Tahoe valance/EBC slotted&drilled rotors with SS lines & SS braided hoses/Edelbrock headers/BB tune/6000k HID low beam & fog lamps/Auto-headlight disable mod(nice)/Vette servo/LT1 E-fans/LED gauge cluster/Titan 18" wheels/Rollpan/Belltech rear sway bar/2-4 drop

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    • #3
      Re: Greasing slip yoke

      just mark the u joint and yoke be fore you take it off and put in nuetral then slide it foward now you will have some fluid come out so have something to

      catch it in.

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      • #4
        Re: Greasing slip yoke

        if you jack the back up high enough nothing should leak out

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        • #5
          Re: Greasing slip yoke

          I am having trouble getting the drive shaft to push forward. I have sprayed it with WD40 a couple of times and pried on it but I can't get it to come loose. Any Suggestions.

          Thanks for the help

          Comment


          • #6
            Re: Greasing slip yoke

            I've been doing my research on this. Apparently a racquet ball shoved in there cures the problem permanently. Only trick is to jam the thing in there and then go about getting the driveshaft back on now that there is literally a powerful spring pushing back at you and not allowing the driveshaft to go back up. I'd love to use a racquet ball instead of grease but I'm thinking I will just go the quick and easy grease route when I get around to this. I did several things to the truck this afternoon but lost the motivation to do this fix unfortunately.
            00 RCSB Z71/JBA cat-back/Z71 Tahoe valance/EBC slotted&drilled rotors with SS lines & SS braided hoses/Edelbrock headers/BB tune/6000k HID low beam & fog lamps/Auto-headlight disable mod(nice)/Vette servo/LT1 E-fans/LED gauge cluster/Titan 18" wheels/Rollpan/Belltech rear sway bar/2-4 drop

            Comment


            • #7
              Re: Greasing slip yoke

              o come on guys a ball... just grease.... if its clunking then replace the U-joints and problem solved! dont do a just grease or shove a ball in there the problem is still there. its just normal wear and tear and they are cheap! they like 10-30bucks brand new! dont wait till that sucker breaks and then your driveshaft breaks free and starts beating the crap out of the bottom of your truck hardcore taking out everything it touches! you know how fast that thing spins and thats just a bad thing waiting to happen!!!
              well the enter hanger or carrier bearing could also bea problem. best to inspect them all and if in doubt replace them anyways since they dont cost to much either well worth the insurance! just look at how many miles are on your truck... thats probably the original parts ;) its due
              97 C1500 Extended cab 3rd door 5.7, 4/6 djm drop, 30bar billet grill

              need any OBS parts and some NBS parts PM me. im a junk yard whore and go all the time.
              tho please small parts for shipping

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              • #8
                Re: Greasing slip yoke

                I fixed the problem. I was able to get the drive shaft to push forward but it was so rusted that I had to put a pry bar between the u joint and the rear end and push on it with my foot while I held on to the rear axle. I then put anti seize (heard that it worked better than grease) on the slip yoke. Now the noise is gone. I just hope it stays that way.

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                • #9
                  Re: Greasing slip yoke

                  Originally posted by thebigcheese109 View Post
                  I fixed the problem. I was able to get the drive shaft to push forward but it was so rusted that I had to put a pry bar between the u joint and the rear end and push on it with my foot while I held on to the rear axle. I then put anti seize (heard that it worked better than grease) on the slip yoke. Now the noise is gone. I just hope it stays that way.
                  Anti-seize is not a lubricant. Some of it is actually abrasive.
                  454cid
                  1999 K3500 RCLB

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                  • #10
                    Re: Greasing slip yoke

                    Originally posted by 454cid View Post
                    Anti-seize is not a lubricant. Some of it is actually abrasive.
                    Works great to fill the lands and grooves of the yoke and tailshaft to eliminate the clunk. Grease just pushes out of the way.
                    Last edited by Quyonmob; 06-26-2011, 06:16 PM.

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                    • #11
                      Re: Greasing slip yoke

                      Originally posted by addiction2bass View Post
                      o come on guys a ball... just grease.... if its clunking then replace the U-joints and problem solved! dont do a just grease or shove a ball in there the problem is still there. its just normal wear and tear and they are cheap! they like 10-30bucks brand new! dont wait till that sucker breaks and then your driveshaft breaks free and starts beating the crap out of the bottom of your truck hardcore taking out everything it touches! you know how fast that thing spins and thats just a bad thing waiting to happen!!!
                      well the enter hanger or carrier bearing could also bea problem. best to inspect them all and if in doubt replace them anyways since they dont cost to much either well worth the insurance! just look at how many miles are on your truck... thats probably the original parts ;) its due
                      We are not talking about driveshaft U-joints, we are talking about the slip yoke... the part of the driveshaft/transmission output shaft area where one shaft slides inside of the other. Over time, the splines there become corroded and it causes a very annoying clunk/chirp that can be felt through the truck every time you take off from a stop. Simply removing some bolts to gain access to the area and hit it with some grease or apparently anti-seize prevents the two splined areas from having the ability to stick together and create that clunk. Also, and this is a common and sure fix, a racquet ball can be shoved in there instead of the grease method. It prevents the movement of the shafts and absorbs the energy of the two shafts moving much like a shock absorber so I know it sounds crazy, but it apparently works very well.
                      Last edited by Tweaks; 06-26-2011, 07:12 PM.
                      00 RCSB Z71/JBA cat-back/Z71 Tahoe valance/EBC slotted&drilled rotors with SS lines & SS braided hoses/Edelbrock headers/BB tune/6000k HID low beam & fog lamps/Auto-headlight disable mod(nice)/Vette servo/LT1 E-fans/LED gauge cluster/Titan 18" wheels/Rollpan/Belltech rear sway bar/2-4 drop

                      Comment


                      • #12
                        Re: Greasing slip yoke

                        Originally posted by Quyonmob View Post
                        Works great to fill the lands and grooves of the yoke and tailshaft to eliminate the clunk. Grease just pushes out of the way.
                        I wouldn't want the effects of long term wear done by the anti-seize.
                        454cid
                        1999 K3500 RCLB

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                        • #13
                          Re: Greasing slip yoke

                          Originally posted by 454cid View Post
                          I wouldn't want the effects of long term wear done by the anti-seize.
                          :lol:

                          Top of my list of internet nonsense for the day. Thanks for the laugh.

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                          • #14
                            Re: Greasing slip yoke

                            Originally posted by Quyonmob View Post
                            :lol:

                            Top of my list of internet nonsense for the day. Thanks for the laugh.
                            It has solids in it such as copper and aluminum. I've heard of glass beads being used, too. Not things I'd want in a lubricant, or in a situation with constant sliding motion.
                            454cid
                            1999 K3500 RCLB

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                            • #15
                              Re: Greasing slip yoke

                              Originally posted by 454cid View Post
                              It has solids in it such as copper and aluminum. I've heard of glass beads being used, too. Not things I'd want in a lubricant, or in a situation with constant sliding motion.
                              :lol:

                              I don't want to lubricate my slip yoke, I want to take the slop out of it. Anti-seize isn't full of acid that's going to burn the splines right off... :thud:

                              340,000km (~210k mi) with anti-seize in the slip yoke on the OBS, only ever need to apply it when I had the shaft out for u-joint, no slop (and no wear to the splines).

                              Don't use it, I could give a fvck, but it's the best solution short of drilling a tapping a grease fitting in it.
                              Last edited by Quyonmob; 06-27-2011, 05:35 AM.

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