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RC 4" lift kit

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MA87K5, Feb 28, 2003.

  1. MA87K5

    MA87K5 1/2 ton status

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    RC 4\" lift kit

    Is the Rough Country 4" lift kit springs supposed to be the same width has the stock springs? If they are not then what did everybody do to keep them for rotating? Thanks for the help.
     
  2. heavy4x4

    heavy4x4 1/2 ton status

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    Re: RC 4\" lift kit

    Ummm...I'm not sure what your question is. What do you mean rotating?
    Yes, they are the same width as stock springs - otherwise the u-bolt plates wouldn't work and the spring eyes wouldn't fit in the shackles.
     
  3. milspecjimmy

    milspecjimmy 1/2 ton status

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    Re: RC 4\" lift kit

    actually they are a little narrower at the eyes, just stack 2 or 3 washers on each side of it and it will be fine
     
  4. Gary 86 K5

    Gary 86 K5 1/2 ton status

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    Re: RC 4\" lift kit

    no problems with mine /forums/images/graemlins/cool.gif /forums/images/graemlins/k5.gif
     
  5. MA87K5

    MA87K5 1/2 ton status

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    Re: RC 4\" lift kit

    What I was meaning is the RC springs that I have are a little narrower then the stock ones where they mount to the axle. There is alot of play. What part numbers are supposed to be on the springs? Thanks
     
  6. MA87K5

    MA87K5 1/2 ton status

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    Re: RC 4\" lift kit

    I just talked to RC and the springs are narrower then stock. What I am going to have to do is weld some rods to the bottom spring and run it along side to the top near the u-bolt mount. One on each side and on all 4 springs. Oh well, life goes on.
     
  7. Swanson52

    Swanson52 1/2 ton status

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    Re: RC 4\" lift kit

    I don't see why you would have to do that. I believe all aftermarket springs are narrower than the GM stockers (2.5" vs. 3"). The spring eyes and ubolts (and plates) keep the spring seated on the perch. Since it is attached at both ends (one that cannot move), it won't spin in the perch.
     
  8. 3car

    3car 1/2 ton status

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    Re: RC 4\" lift kit

    dont weld to your springs.you will kill yourself.the heat will destroy the springs and they WILL break,probally before you make it out of the driveway.you cannot weld on springs!!! /forums/images/graemlins/crazy.gif /forums/images/graemlins/crazy.gif /forums/images/graemlins/crazy.gif
     
  9. MA87K5

    MA87K5 1/2 ton status

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    Re: RC 4\" lift kit

    Ok welding is out of the question. I tightened them down a little more and I'll see if they still move. Thanks everyone.
     
  10. MA87K5

    MA87K5 1/2 ton status

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    Re: RC 4\" lift kit

    So far the springs haven't moved since I tightened them. Rough Country instructions say 90 ft lbs. Not enough torque apparently. Thanks for everyones help.
     
  11. Catman

    Catman Registered Member

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    Re: RC 4\" lift kit

    Hey, same problem with the same kit! My rear left spring rotated out a couple inches. Tomorrow it's big rubber mallet and air wrench time. I'll watch this thread to see what others say. /forums/images/graemlins/k5.gif /forums/images/graemlins/usaflag.gif /forums/images/graemlins/thumb.gif
     
  12. bad andy

    bad andy 1/2 ton status

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    Re: RC 4\" lift kit

    i hope ur not usin an air wrench to tighten those bolts, i was always taught to only use air wrench when loosening bolts
     
  13. MA87K5

    MA87K5 1/2 ton status

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    Re: RC 4\" lift kit

    nope just a 1/2" drive ratchet. So far so good no movement yet.
     
  14. 87sm465np208

    87sm465np208 1/2 ton status

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    Re: RC 4\" lift kit

    interesting, my R\C instructions say to torque the spring eye bolts to 100-120 FT\LBS. /forums/images/graemlins/grin.gif
    the torque on that steering arm bolts are 90ft\lbs tho.
    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     
  15. MA87K5

    MA87K5 1/2 ton status

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    Re: RC 4\" lift kit

    oops I got the specs for the u-bolt wrong. I still have no side movement. Now I just need to get shims with more of an angle to fix my driveshaft vib.
     

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