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  1. #1
    RC Racer
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    Broke my front left halfshaft....

    I am trying to figure out the right part number. I dont think its the halfshaft that broke, more the connecting peice to the midline. Its the front left driveshaft, and its the peice that connects to the chassis assembly, maybe part # 5654?

    Any clues?

  2. #2
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    5653 by the sounds of it but I'm not sure, post a pic up

    How did you break it anyway? So I can avoid doing that lol
    What's a coffee if it aint Irish

  3. #3
    RC Turnbuckle Jr. jamann's Avatar
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    plastic or metal?
    Mountains cant stop me
    they have tried

  4. #4
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    Quote Originally Posted by jamann View Post
    plastic or metal?
    Umm let me see. Its the part that connects directly into the chassis.

  5. #5
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  6. #6
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  7. #7
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    Wow!!!!!!! I want to know how you did that. You broke the out put shaft in the diff

    About 10 or so forums down is the same thing. Here is a link
    http://traxxas.com/forums/showthread...in-sheered-off
    _______^_
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  8. #8
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    Quote Originally Posted by Keila72 View Post
    Wow!!!!!!! I want to know how you did that. You broke the out put shaft in the diff

    About 10 or so forums down is the same thing. Here is a link
    http://traxxas.com/forums/showthread...in-sheered-off
    Thank you!!

  9. #9
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    Holy crud, this is going to take a while

  10. #10
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    Lol. Well just think that its a good time to check over everything and to put some 500k diff oil in there. It will make it more of a LSD rather then a open diff with out having the lockers engaged.

    How did you manage to break that?
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  11. #11
    RC Turnbuckle Jr. jamann's Avatar
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    That would be #5678 snapped one there myself.
    There was a bad batch way back, still see the odd one. pretty rare lately
    Traxxas may help you out that should not break there.Plastic should have givin up first.Keep in mind I'm not a expert.


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  12. #12
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    Quote Originally Posted by Keila72 View Post
    Lol. Well just think that its a good time to check over everything and to put some 500k diff oil in there. It will make it more of a LSD rather then a open diff with out having the lockers engaged.

    How did you manage to break that?
    Indoor concrete makeshift track with high jumps

  13. #13
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Proof you are having a blast with it!
    Whatever it is I just said... I could be wrong.

  14. #14
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    Quote Originally Posted by Jimmie Neutron View Post
    Proof you are having a blast with it!
    Traxxas said they will replace the diff and some oil, is the part number 5678?

  15. #15
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    Yeah, and that's a crazy break
    What's a coffee if it aint Irish

  16. #16
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    It has to be either 5678:

    (left side of this picture)

    or 5382x
    Whatever it is I just said... I could be wrong.

  17. #17
    RC Turnbuckle Jr. jamann's Avatar
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    From the pic. It looks like front locker side.# 5678.lucky you get to open up a diff to replace the locker shaft.on a good note.pretty rare for that to break.so you shouldn't have to replace that again anytime soon


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  18. #18
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    Quote Originally Posted by jamann View Post
    From the pic. It looks like front locker side.# 5678.lucky you get to open up a diff to replace the locker shaft.on a good note.pretty rare for that to break.so you shouldn't have to replace that again anytime soon


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    Yall are awesome, thank you for all your help. Sure wish one of yall lived by me so I could take this apart with some help lol. Maybe a 3 hour job.

  19. #19
    Marshal ksb51rl's Avatar
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    Although they are for the n-Revo model, these instructions (page one) will get you started:
    Differential Rebuild Instructions
    There are some differences, the main being that you need to remove the T-Lock linkage. Hold the linkage in place with your fingers while you remove the 2.5mm caphead screw. You don't want to twist the plastic T-Lock actuator.
    Last edited by ksb51rl; 01-07-2013 at 03:21 PM.
    Alt-248 on the number pad =

  20. #20
    RC Turnbuckle Jr.
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    Wow, I haven't heard very much about that part breaking since the Summit first came out nearly 4 years ago. I broke a similar piece in my Summit early in the spring of 09, which was the first of two parts I ever broke on it. The second was the rear bumper mount from doing repetitive wheelies. Either way though, it sounds like you are having fun with your Summit.

  21. #21
    RC Turnbuckle Jr. jamann's Avatar
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    It seems intimidating....It's really not so bad.follow what ksb suggested. once you see it apart,you will see its not that
    Complicated really.Its a bummer that you have to dig into the truck this soon.
    I had mine break 30 minutes after I got it.(bad batch of 5678) I Hadn't joined here yet....it was a adventures took apart twice as much as I needed to...lol


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  22. #22
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    Quote Originally Posted by ksb51rl View Post
    Although they are for the n-Revo model, these instructions (page one) will get you started:
    Differential Rebuild Instructions
    There are some differences, the main being that you need to remove the T-Lock linkage. Hold the linkage in place with your fingers while you remove the 2.5mm caphead screw. You don't want to twist the plastic T-Lock actuator.
    Okay i will follow this, thank you bud, would know what to do if i didnt have this site and the good peeps on it. Thanks for the heads up about holding the tlock linkage while undoing the screw. I was putting my new 2065 trans shift servo on and didnt tbink to hold the li kage and i believe i may have stripped one tooth off of the servo horn lol!! Man, these machines can take up time if you dont replace stuff properly. I am learning. My garage is turning into a big area of broken parts and tools. I just bought my daughter a two wheel drive stampede and i cant even play with her because i have been fixing my summit lol.

  23. #23
    Marshal ksb51rl's Avatar
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    If you need any P2de help or advice, be sure to ask. A few of us cut our teeth on those.

    Back OT: I think it's time to modify that How-to. Hmmm...
    Alt-248 on the number pad =

  24. #24
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    Quote Originally Posted by ksb51rl View Post
    If you need any P2de help or advice, be sure to ask. A few of us cut our teeth on those.

    Back OT: I think it's time to modify that How-to. Hmmm...
    Okay thank you, well here goes nothing, wifey said I could use the kitchen table as my work area. Wish me luck.

  25. #25
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    Okay, got the bulkhead off, and that tiny piece at the bottom of the picture is what broke off the output shaft.



    And my beautiful wife being my cheer leader as i scream when i flipped over the summit after disconnecting the bulkhead and almost snapped my steering servos because the bulkhead came off the chassis. God willing, i wont break anything trying to repair this.


  26. #26
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    Front differential is out, just under an hour lol. Good Lord, I pray i can get this done and not have 20 screws left over, amen (sincerely)


  27. #27
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    What have i gotten myself into:


  28. #28
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  29. #29
    Marshal ksb51rl's Avatar
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    You will get good enough that you can pile all the pieces on top of each other and not have a problem. Well, if you have 6+ trucks like I've had (at the same time) you will.
    Last edited by ksb51rl; 01-07-2013 at 11:01 PM.
    Alt-248 on the number pad =

  30. #30
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    Quote Originally Posted by his grace View Post
    I'm loving it.
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  31. #31
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Quote Originally Posted by ksb51rl View Post
    You will get good enough that you can pile all the pieces on top of each other and not have a problem. Well, if you have 6+ trucks like I've had (at the same time) you will.
    And assemble just by feel... eyes closed.
    Whatever it is I just said... I could be wrong.

  32. #32
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    Very nervous. Now just waiting on the part and the oil to come from traxxas. I hope I can put it all together and have a running summit again. Well, at least I know if I can do this, I can do anything, including conquer the world. You all have been a tremendous encouragement and help, couldn't have even gotten this far if it wasnt for all of your help.

  33. #33
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    Done for the night:


  34. #34
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    haha nice, looks like my living room floor after a heck of a weekend
    EMBE
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  35. #35
    RC Turnbuckle Jr. jamann's Avatar
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    The labelling is always good...
    The others are right.I've done one or two..I can do it in a half hour start to finish.it is one of those things that you wish you weren't good at ... Lol


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  36. #36
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    Okay, got the parts in. They forgot the diff fluid, so i went and bought some master pro 80w-90 gear oil. Question: how much gear oil do i put in the front diff?

  37. #37
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I wouldn't put any, but when filling a differential I fill it completely.

    Stock is thicker than what you are attempting to use. I can open the lid on my 100k diff fluid and tip it upside down for several minutes before it even starts to flow.
    Whatever it is I just said... I could be wrong.

  38. #38
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    Quote Originally Posted by Jimmie Neutron View Post
    I wouldn't put any, but when filling a differential I fill it completely.

    Stock is thicker than what you are attempting to use. I can open the lid on my 100k diff fluid and tip it upside down for several minutes before it even starts to flow.
    100k compared 90w? Is that really 100,000 weight?

  39. #39
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    And dad gu.mit!!!!!! They didnt send me the right part arggggg! I have been sitting around for two weeks waiting on traxxas. They didnt send me the #5678 that i asked for. They sent me a rebuild kit (5382x) that had everything for a diff rebuild except the right part. Man this stinks

  40. #40
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    I run 500k or marine wheel bearing grease in my diffs. I want them to lock up with out having them being locked.

    That sux that they sent the wrong part. That's happened to me on a transmitter they sent beck and it was still broke. They ended up sending me a bran new transmitter for free and I got to keep the old one.
    _______^_
    /______l__\____
    l_l O l_____l O l

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