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  1. #1
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    Replacing the Fox Shock Bushing

    If you slightly lift up the saddle of 575 and hear a knocking or looseness kinda noise, make sure all the suspension bolts are tight, your rear wheel's bearings are not loose and your saddle is tight on the seatpost. If the sound and sensation is still there, it's more than likely your shock's bushings.
    Here is what it would sound like (turn up the volume):


    I'm not including the steps to remove the shock from the bike and the dogbone as that was already covered on a different thread.

    Step 1- Gather all the tools you will need. In this case, a bushing tool. This tool is made by mtbr member "mtnbiker4life" and he sells it in the classifieds along with bushings for different manufacturers. It is a very well made and I highly recommended it to the DIY crowd! Also shown are the assorted tools needed to remove the shock from the Yeti and it's dogbone linkage.



    Here is a picture of the old bushing prior to removal.


    Step 2- Insert the Ejector Pin through the bushing and slide the bushing guide on the other side with the counter bore facing the shock so as to capture the bushing once it's pressed out by the pin.



    I used a vise to press the bushing out out of the shock eyelet and into the counter bore.


    The bushing presses out pretty easily using the vise.


    Note that the bushing has been pressed out of the shock's eyelet and into the counterbore on the other side.


    Step 3- Installing a new bushing
    Clean the eyelet.


    Lightly grease the pin


    Put the new bushing on the pin


    Lightly grease the bushing


    Place the support foot (the end cap) into the counter bore of the bushing guide (the counter bore will not be directly against the shock during the bushing installation).


    Make sure that the slit in the bushing is facing away from the shock body (or facing the back of the bike).


    Put the tool into the vise and slowly press the new bushing in.


    Halfway in


    Done



    Step 4- Put the shock back on the bike and torque all bolts to spec.

    Test. No more bushing slop


    Total time was 10 minutes to remove the shock and dog bone, 5 minutes to remove and install a new bushing and another 10 minutes to reinstall the dog bone and put the shock back on the bike....

  2. #2
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    excellent thanks, glad I got my LBS to do and didnt try and do with a hammer and bolt !
    Cost here in NZ US$ 25.00
    Trainings Cheating

  3. #3
    Nightriding rules SuperModerator
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    awesome pictorial, Flip!

    one detail though...aren't bushing supposed to work completely dry? I thought grease actually increased wear and they were "self lubricating".....I am sure mtnbiker4life will drop by and clear this doubt...

  4. #4
    Nightriding rules SuperModerator
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    ah...seems I misunderstood...

    I just reread that part from the bushing tool instructions

    "Rub a light coating of grease on the Ejector Pin o-ring then place a new bushing on the
    Ejector Pin. Place the Support Foot into the counter bore on the Bushing Guide as shown.
    Then slide the Bushing Guide onto the end of the Ejector Pin. At this point you will want to
    position the slit in the new bushing so it opposes the direction of shock travel. Also, to make
    the installation a little easier you can add some grease to the outside surface of the new
    bushing. Now press the Ejector Pin until the front side of the bushing is flush with the other
    side of shock/Bushing Guide. Carefully remove the Ejector Pin.

    Before installing shock spacers rub a light coating of grease on the surfaces that will contact
    the new bushing. Even though, these bushings are designed to be run dry and the bearing
    surface material is extremely durable any excessive rubbing will degrade bushing longevity."

  5. #5
    trail "cleaner"
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    Very cool Flip!

    Thanks for posting. I'm gonna go get one of these . Oh.... BTW you need to get this... Then you can really use that vice
    http://www.calcarcover.com/product.aspx?id=591&cid=31
    Last edited by AZmtncycler; 07-02-2010 at 11:05 AM.
    No dabs allowed!

  6. #6
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    Quote Originally Posted by AZmtncycler
    Thanks for posting. I'm gonna go get one of these . Oh.... BTW you need to get this... Then you can really use that vice
    http://www.calcarcover.com/product.aspx?id=591&cid=31

    Dude... I was looking for those at Harbor Freight a couple of weeks ago. I'm thinking that I can just use some old inner tubes wrapped around the jaws for now...

    The tool is surprisingly affordable (it will pay for itself the first time you use it).... And with the number of bikes that you have with Fox shocks and the way the bushings wear out on a 6 month basis, you'd be ahead in less than a year...

  7. #7
    trail "cleaner"
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    Ha.. good one.

    Quote Originally Posted by flipnidaho
    Dude... I was looking for those at Harbor Freight a couple of weeks ago. I'm thinking that I can just use some old inner tubes wrapped around the jaws for now...

    The tool is surprisingly affordable (it will pay for itself the first time you use it).... And with the number of bikes that you have with Fox shocks and the way the bushings wear out on a 6 month basis, you'd be ahead in less than a year...
    Well, you'll be happy to know that my stable has been reduced to only 4 bikes now Three using Fox shocks though.. So, I'm ordering 6 bushing along with the tool from Vince. Thanks again Flip for posting the good stuff!
    No dabs allowed!

  8. #8
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    Bought one... used it and ....

    Gotta say.... If anyone of you fellow 575 tribe members have that slight play when you lift you bike by the seatpost, Get one of these. My '05 Tangerine Dream was exhibiting this small vertical play and after replacing the DU bushings with this tool... zippo, nada, none whatsoever. I rate this as a .
    No dabs allowed!

  9. #9
    I like Monkeys
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    I had mine replaced about a month ago. My great LBS (Bikes Unlimited Lynchburg Va) replaced it at NO COST. My bike was about a year old. They said it shouldn't be like that so soon so they took care of me. Great shop!
    What do I want to be when I grow up.....Dead!

  10. #10
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    Aye if you lift your bike up by the rear end unweighted (thats u off the bike) and it knocks or you can feel play replace you bushings. Also you can often see the tiny movement which confirms it's the shock busings worn and not something else.

    I assume most people basic service their rear shocks - air can clean etc. As long as you've got the correct tool and the correct bushings this is a pretty simple job actually.
    If you can take your shock off - clean the can and regrease then refit - thats the hardest part already done IMO - pushing out the old ones and pressing in the new ones with the tool is pretty idiot proof imo as the above pictorial demonstrates. Only without the right tool is it risky.

    Personally the first time I had ever mine done on a bike I got them replaced at the service centre (for a major service) - once you get the tool and have a vice however the bushings replacement is a 5 minute job and nothing to be really scared of. Of course if your not sure then it's worth getting your LBS to do it - but it's really really simple tbh and if i can do it then I assume most people can.

    A few years ago when I started biking I knew nothing about bike maintenance and I worked up from simple tasks to the more complicated stuff by reading the various books. I reasoned that when i'm biking in the middle of nowhere I need to know how it all works and how to fix it. Now i've got no reservations in building a bike from scratch and i'm suprised how easy it really is.

  11. #11
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    anybody know where i can get one of these bushing tools (online maybe) and bushings?

  12. #12
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  13. #13
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    Forgot all about this tool. I'll order one now.

  14. #14
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    BTW - The Yeti linkage tool is on Jenson for $20.

  15. #15
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    ... and if we just ... Thanks!

    I finally got around to replacing the bushing on the rp3 of my wife's 06 575, and I just wanted to say thanks to flipnidaho, jeremyp11, and mtnbiker4life.


    mtnbiker4life's bushing tool, and this thread and bits of info from the following threads (with pics and steps) from flip and jeremy made the whole process VERY easy.

    RP23 Woes...Today just was not my day!
    Blown RP3 help...

    Thanks,
    Ant

    Gotta love the tribe!!

  16. #16
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    where can i get the eyelet bushings

  17. #17
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    Quote Originally Posted by Notahammer
    where can i get the eyelet bushings
    From your local bike shop - they are pretty common and cheap.
    A green bird with a red body. We could look it up in a book. Or we could look up

  18. #18
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    Quote Originally Posted by kiwirider
    From your local bike shop - they are pretty common and cheap.
    or you could swtich them to needle bearings. 50+ bucks for a set

    http://www.enduroforkseals.com/id276.html

  19. #19
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    not for the 575

    If you own a 575, you are stuck with the DU bushings.. there isn't enough space between the dog bone and the shock to fit these needle bearing kits
    No dabs allowed!

  20. #20
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    Wink

    Quote Originally Posted by AZmtncycler
    If you own a 575, you are stuck with the DU bushings.. there isn't enough space between the dog bone and the shock to fit these needle bearing kits
    You really do not need the needle bearings on the lower shock mount, as the dogbone and seat stay both have cartridge bearings, keeping things smooth. You can however mount it on the upper mount. I did My opinion is that the bigger movement on a pivot, the more you will benefit from upgrading to needle bearings from bushings. My ASR has needle bearings on both eyes.

  21. #21
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    I have a knocking sound on my 09 575, but not from lifting the back, when I put weight on the saddle and push down there is an annoying knock which I can also hear when riding, my LBS have tightened all bolts and checked the shock bushings but can't seem to find any thing, I have taken seat post off and it's still there, I have swapped forks recently and still there, I've removed cables and swapped wheels. Please can any one help

  22. #22
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    hard to say but...

    try cycling the suspension with the shock disconnected at the upper mount. At least you can then feel for what may be binding up. Does it knock at the same location every time?
    No dabs allowed!

  23. #23
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    Disconnected the shock at the top mount, but it takes a bit of weight onto the top tube or saddle for it to knock.

  24. #24
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    same position?

    Quote Originally Posted by Mark G
    Disconnected the shock at the top mount, but it takes a bit of weight onto the top tube or saddle for it to knock.
    does the knock occur at the same spot of the suspension cycle? If so, it might be the bearings in the dogbone.
    No dabs allowed!

  25. #25
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    Yes it seems too, I will check the dog bone bearings, thanks

  26. #26
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    thanks

  27. #27
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    Quote Originally Posted by morosito View Post
    thanks
    Just saw the thread "awaken" so I was interested to see what was up, maybe something new - a tool, procedure or other perhaps, but then realized it seems like between the last post in 2010 and now in 2012 nothing took place. Well a "thanks" happened, but thats it...



    I would have been excited to see a new tool, granted I may not need more, but I do love good tools!

  28. #28
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    Quote Originally Posted by drbelleville View Post
    Just saw the thread "awaken" so I was interested to see what was up, maybe something new - a tool, procedure or other perhaps, but then realized it seems like between the last post in 2010 and now in 2012 nothing took place. Well a "thanks" happened, but thats it...



    I would have been excited to see a new tool, granted I may not need more, but I do love good tools!
    I've been meaning to ask - evidently Fox has some new mounting hardware ( not tools ) for these bushings ... was wondering if anyone knew if they were making ones for the 575.

  29. #29
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    They are making a new version of the bushings- no longer uses the press in bushing. Uses a through axle with some sort of composite plastics mount. I just put them on my SB-95. $25 straight from Fox, works like a charm.
    Yeti SB-95a Black

  30. #30
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    Quote Originally Posted by Mr Bacon Jr View Post
    They are making a new version of the bushings- no longer uses the press in bushing. Uses a through axle with some sort of composite plastics mount. I just put them on my SB-95. $25 straight from Fox, works like a charm.
    Got some pics by chance, I have machined some out of delrin, yet I think after machining and the time it took (not on a CNC mill - manual mill) it might be cheaper to check into these.

    Are they like an carbon impregnated plastic or Delrin?

    Did you call Fox Customer Support to order these, and did you have to specify bike or measurements?

    Hmmm...

  31. #31
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    Quote Originally Posted by Mr Bacon Jr View Post
    They are making a new version of the bushings- no longer uses the press in bushing. Uses a through axle with some sort of composite plastics mount. I just put them on my SB-95. $25 straight from Fox, works like a charm.
    I got them for my 575 also but have not installed yet..

  32. #32
    Lucky...
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    Quote Originally Posted by drbelleville View Post
    Got some pics by chance, I have machined some out of delrin, yet I think after machining and the time it took (not on a CNC mill - manual mill) it might be cheaper to check into these.

    Are they like an carbon impregnated plastic or Delrin?

    Did you call Fox Customer Support to order these, and did you have to specify bike or measurements?

    Hmmm...
    Just called Fox support direct; specified what bike they were going on as, but don't think it matters. Work like a champ- going to guess Delrin, but not sure.

    One of my riding buds did a write up on the replacement, and it has some good shots of the new parts -> AustinBike.com - 2013 Fox Shock Bushings
    Yeti SB-95a Black

  33. #33
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    Quote Originally Posted by yeti575inCA View Post
    I got them for my 575 also but have not installed yet..
    Just wanted to follow up to see if you have installed them yet and what you thought of them.

    Also anyone have any feedback that has installed the new bushings?

  34. #34
    I am with her.
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    Yes, a update would be nice.

    I just did a search and there are quite a few threads about this on mtbr.

  35. #35
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    Work great- got a couple hundred miles on them and they are silent and working well. Had not even thought about them again until I saw this thread again. Good engineering.
    Yeti SB-95a Black

  36. #36
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    I just got mine...a little confused.

    For the rear mount, should I be replacing the actual bearings that were in the dogbone? I don't see how the hardware will fit otherwise. A bit nervous about replacing a metal bearing with a plastic ring ... not sure if I got the right size for the rear perhaps?

    Just got off the phone with Fox ... seems maybe there isn't a kit for the 2010 575 ... reading these posts, its not clear exactly which year 575s people had. Anyone with an older 575 got the kit and have it fit?

    Next stop, Yeti.

    Ok ... just got off the phone with Yeti. Confirmed. The 2010 and before 575s do not have a kit....proprietary size. Oh well. Seems I saw a link to a needle bearing setup from the EU ... but nothing stateside. Guess I'll live with the "clunk".
    Last edited by slcpunk; 12-12-2012 at 02:46 PM.

  37. #37
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    Quote Originally Posted by drbelleville View Post
    Just wanted to follow up to see if you have installed them yet and what you thought of them.

    Also anyone have any feedback that has installed the new bushings?
    On my 2010 575, you can only replace the front bushing on the shock. I did the replacement in about 20 minutes and they seem to work good.

  38. #38
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    Quote Originally Posted by KentM View Post
    On my 2010 575, you can only replace the front bushing on the shock. I did the replacement in about 20 minutes and they seem to work good.
    Kent you around this weekend? I may change mine out.

  39. #39
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    Found what I was looking for ( well, haven't ordered yet ... )

    Bicycle Suspension - TF Tuned Shox

    Seems like if you measure for 575 they should have something that works.

  40. #40
    Chilling out
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    slcpunk: what size is the hardware you need? Fox may not make "the new hotness" in the right size but they may have the older metal pin+sleeve 5-piece hardware, which will last a bunch longer than the two-piece hardware.

  41. #41
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    Quote Originally Posted by bear View Post
    slcpunk: what size is the hardware you need? Fox may not make "the new hotness" in the right size but they may have the older metal pin+sleeve 5-piece hardware, which will last a bunch longer than the two-piece hardware.
    Here's what it looks like. The bolt is 8mm across ( 4mm radius? )

    I think the bolt is about 46mm long. ( could probably find from yeti docs to be sure )

    The width of the eyelet with the reducers installed is just shy of 16mm ? I see that TF Tuned shox has 15.8 as a standard offering.... maybe there's a reason?

    The problem I think is that most mounts have much shorter bolts such that they cinch down on the actual reducer or frame. Instead yeti has the dog-bone bearing and swing arm in that "sandwich".
    Attached Thumbnails Attached Thumbnails Replacing the Fox Shock Bushing-yeti-575-shock-mount.jpg  

    Last edited by slcpunk; 12-14-2012 at 05:54 AM.

  42. #42
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    *delete*

  43. #43
    Vitamin Bike Added
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    trying to find this kit for my yeti 575 anyone have a link to the listing?.
    Keep the rubber side down

  44. #44
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    Contact fox directly. They can help you that's how I got mine.

  45. #45
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    Well I ordered up a set, and replaced the Bushings on my DHX Air - on another frame (Haro) and am disappointed with the play between the bushing and the eye on the shaft side (on the can side it is nice and snug). Now every time I pick the bike up I can feel the play in the bushing to eyelet interface.

    I am not sure what the deal is, and will measure the eyelet with a micrometer at a later time and compare it to the can side to see if it is worn, although after pressing out the old bushing sleeve, there was no evidence of that.

  46. #46
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    Funny this should pop up again. I'm finishing up some winter maintenance on my ASR5C and decided to upgrade the bushings to the new polymer ones. My LBS ordered through the Fox distributor, told them year and model (said they had a list of sizes etc) and they sent out 2 bushings, both 8 x 21.84. But I notice that the manual states 8 x 22 and 8 x 23.5. I too am worried about possible play. Do the bushings come in such small increments? Do I add a spacer? Haven't installed them yet - sent an email to Fox for any insight, but haven't heard back.

  47. #47
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    Quote Originally Posted by chunkylover53 View Post
    Do I add a spacer? Haven't installed them yet - sent an email to Fox for any insight, but haven't heard back.
    I had called them to talk with a tech, as they did not have my frame in their database. The top mount measured 31mm accross and as such I was suprised that they had one. But try giving their tech center a call, am not sure, but maybe there is a discrepancy in their frame database?

    FOX MTB - 800.369.7469

  48. #48
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    Did end up talking to Fox and Yeti. Seems the 8x22 is pretty common, so no problem there. But the 8x23.5 is specially made for Yeti, and not available through Fox. And Yeti said they don't carry them. A little frustrating. Might leave things alone and forget about it.

  49. #49
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    Quote Originally Posted by chunkylover53 View Post
    Did end up talking to Fox and Yeti. Seems the 8x22 is pretty common, so no problem there. But the 8x23.5 is specially made for Yeti, and not available through Fox. And Yeti said they don't carry them. A little frustrating. Might leave things alone and forget about it.
    I am suprised FOX does not offer shims, to center and fit the new bushings as needed!

    Enduro does offer shim kits, I am not sre if they have what you need, but its worth a shot: STAINLESS STEEL SHIMS FOR NEEDLE BEARING KIT NBKRWC40

  50. #50
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    Okay, maybe I'm a nutter, but if you

    - used the new bushings on both ends of the shock
    - put a ~1mm or ~1.5mm shim on the same side of both ends of the shock
    - it would all be just fine?

    I mean really, there's going to be a shock/frame problem because it's 0.75mm closer than "spec" on one side?

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