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Snapping rear dog bones on my Rampage MT

Discussion in 'Chassis & Drivetrain' started by Blackhawk, Jun 21, 2017.

  1. Blackhawk

    Blackhawk New Member

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    this is my 6th time snapping the bones,I heard about mcd bones but you need a special drive cup and they don't make it anymore,could I use the drive cup that meant for the xb only difference is the shape,and what dogbone would I need to put in it,mod doesn't make the evo2 bones anymore.thanks.
     
    MTKelley likes this.
  2. designed2survive

    designed2survive Senior Member

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    I'm not sure about the XB cups fiting the MT. How are you snapping your bones? Are you having chassis flex issue?
     
    MTKelley likes this.
  3. G-Man

    G-Man Junior Member

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    Wow I have only snapped one axle that was bent from a bad jump landing. Are you jumping alot? Landing jumps on throttle? That drivetrain cant handle having the throttle mashed and landing a jump. Diff pinion and crown gears are next
     
  4. Blackhawk

    Blackhawk New Member

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    No just hard driving,I miss worded it I'm talking about the axles going to the wheels,when the pin break the axle gets messed up. I have snapped a few in half at the center.
     
  5. Phill

    Phill Active Member

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    Probably caused by wheel hop under full throttle.
    Happened to my DR once
     
  6. G-Man

    G-Man Junior Member

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    Oh yea the grub screws like to come loose and lose the pins. I double grub screw them with blue loctite then wrap tape around where the pin goes through. Have yet to lose a pin since. Snapped the dog bone end once after that like I said earlier.
     
  7. MTKelley

    MTKelley New Member

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    You must be squeezing every bit possible outta your motor with tuned pipe and air intake or something lol the stock parts I imagine are designed and rated for stock power output. I still have the stock muffler can on my MT and about 5 tanks thru, only problem really so far for me is the brakes 2 set screws keep backing out from vibration, will blue loctite those screws tomorrow for sure
     
  8. Phill

    Phill Active Member

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    Put a decent pipe on it and see the difference.
    The stock can is badly restricting your motor.
     
  9. bbuzzard

    bbuzzard Contributor

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    What type clutch are you running? I found the stock 6k sprung clutches work better for me dealing with those heavy wheels
     
  10. Phill

    Phill Active Member

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    I have the stock 6k on my Dunerunner.
    8k is a pain when you don't want full acceleration like when coming out of corners.
     
  11. Blackhawk

    Blackhawk New Member

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    Sorry for the late reply,it was the grub screws and yes I am squeezing every ounce of power possible out of a rcmk 28.5.breaks a lot of stuff but she's being holding up great.
     
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