Bilstein Question

Discussion in 'Lifted Supension - Z71 & 4x4' started by Tractoman, Mar 7, 2017.

  1. Tractoman

    Tractoman Member

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    When replacing oem front shocks, do you use the OEM spring seat on the bilstein shock? Also are the 5100's superior to the 4600's? I am going to install a CCM 2.5/1 and think I will do the shocks at the same time. Rig is a Yukon XL with 84K on it.
     
  2. 01Konvict

    01Konvict Boats n Hoes

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    Yes you use stock spring and upper shock mount for new 5100s. Yes they are significantly better. That level will work fine with the shocks.
     
  3. Tractoman

    Tractoman Member

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    So the lower spring seat comes with the new shock or does it come off the OEM shock? No pics show the lower seat on the shock.
     
  4. 01Konvict

    01Konvict Boats n Hoes

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    It comes off the stock shock. Just has stop rings on 5100s.
     
  5. Chev

    Chev TYF Newbie

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    Bilstein 5100 on 07 yuk Denali. My OEM stock struts were replaced before me, I have no OEM spring seats. Having very difficult time sourcing spring seats. Anyone got a clue? I call bilstein no answer or part for my dilemma. Thanks
    NorCal ss may hold the key


    Sent from my iPhone using Tapatalk
     
  6. Tractoman

    Tractoman Member

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    Use whatever spring seats are on the car now. The should come off to transfer to the new ones.
     
  7. The_Burban

    The_Burban Full Access Member

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    Sucks no answer to this. I'm trying to preload mine. Without spring seats, I'm stuck using old ones.

    Moog K160311 seems to be the nylon isolator.
     
  8. The_Burban

    The_Burban Full Access Member

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    To follow this up, GM does not sell the lower spring perches - perch, not the nylon insulator.

    I could not find the Moog equivalent.

    This part must be harvested from a strut assembly. I bought a new AC Delco strut assembly for the perch.


    I bet a wiz on AutoCAD could have the part drawn up quickly. Then send off to an online machine shop. Cheaper and I bet room for upgrade.
     

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