JBA Y-Link Extension

Discussion in 'Lift Kit Discussion' started by mx3_ryder, Jan 12, 2016.

  1. dude1116

    dude1116 Full Access Member

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    Considering I don't have a 100% flat surface to work on and no help... :emotions34:
     
  2. tommudd

    tommudd Moderator Staff Member Moderator

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    My current garage is sloped somewhat ( stupid idea by the builder ) but I just put a piece of railroad track behind the tire a couple of inches so it doesn't go too far, PLUS in gear it can't really.
    No help is a lot better than some who try to help :happy175:
     
  3. profdlp

    profdlp On The Ledge

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    Is that your pinion pointing up, or are you just happy to see me?

    [​IMG]
     
  4. tommudd

    tommudd Moderator Staff Member Moderator

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    I do feel vibrations
     
  5. 4x4kayak2112

    4x4kayak2112 Full Access Member

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    Now all of that changes if you have one of these......[​IMG]

    You know. I just love being different.

    Sent from my SM-N900P using Tapatalk
     
  6. GYPSY400

    GYPSY400 New Member

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    I just lifted my jeep.. it came up 3.5" from where it was ( badly sagged i guess.) I then had wicked vibration. . Added a tri-link extension ( i built my own) and the vibration is not as bad.. i will try and shim it this weekend to see if it improves

    Sent from my SGH-I747M using Tapatalk
     
  7. tommudd

    tommudd Moderator Staff Member Moderator

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    What lift etc did you use?
    Could be an issue as well
    PLUS check rear u-joints, since they are running at a different angle they could possibly be worn out and causing it. Just due to feeling tight is not always an indication that they are OK
    Hope you built it good and strong, they take a beating ....well if you do take offs like I do:happy175:
     
    Last edited: Jan 15, 2016
  8. GYPSY400

    GYPSY400 New Member

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    I went with ironman springs and Rancho shocks. . Measures 21.5" from hub to fender.
    Im also suspecting u-joints too as they have about 70k miles on them, and now with the lift they are "working" more.. im going to check my driveline angles tomorrow morning. . My vibration is noticable between 45-55mph.. gone by 60mph.. and doesnt do it while coasting . Ill chime back in once I measure and correct the angles

    Sent from my SGH-I747M using Tapatalk
     
  9. krisP

    krisP Full Access Member

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    so to summarize for my own sake .. remove old link , align driveline, install JBA and done ?
     
  10. tommudd

    tommudd Moderator Staff Member Moderator

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    My original u-joints were gone by 50,000 miles, they were rusted solid almost. Bad vibes at 35-50 on mine
     
  11. tommudd

    tommudd Moderator Staff Member Moderator

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    Short answer would be yes , pretty much it:icon_lol:
     
  12. krisP

    krisP Full Access Member

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  13. tommudd

    tommudd Moderator Staff Member Moderator

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  14. krisP

    krisP Full Access Member

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    had the extension set up to see what washer set up i would need ( 21.5 lift ) and where the extension bolts to the diff it always seemed to come in at a pretty sharp angle. Didnt feel comfortable putting it on that way.

    Had the bracket attached to the ball joint when mocking it up . Could this be the problem ?

    also are all the washers meant to be used ? seems a little excessive especially on the bottom smaller part of the extension
     
    Last edited: Jan 30, 2016
  15. tommudd

    tommudd Moderator Staff Member Moderator

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    Some get used in between the brackets some on the outside
    Did you have a jack under the rear diff to get it at the right angle?
     
  16. krisP

    krisP Full Access Member

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    yes i have a jack a jack under the yoke. I think my problem was trying to line it up with it connected to the ball joint already. Maybe it will work better if i attach the ball joint after i bolt the ext to the diff

    the pinion angle wasnt off much if any, im more looking for a correction in the upper control arm position
     
  17. the_dealer

    the_dealer Full Access Member

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    Drop the jack so the pad is about an inch under the pinion and have someone rock the jeep while you guide it in. Work the jack with your leg to Raise pinion as needed. I've done it too many times to count and that always works.

    Sent from my SM-G900A using Tapatalk
     
  18. krisP

    krisP Full Access Member

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    Got , feels good and looks good. Thanks for the help everyone:happy160:
     
  19. tommudd

    tommudd Moderator Staff Member Moderator

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    4 thumbs up cause one is not enough!!!
     
  20. krisP

    krisP Full Access Member

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    been having some driveline vibe issues .... since i still have original ujoints with 85000 miles on them they will be replaced first...much overdue anyways....if that doesnt help ill do some washer adjustments. Just when you think youve got it all figured out haha :emotions34: