Ran into a problem installing new rear (upper front position) control arm

Discussion in 'Dodge Challenger SRT Hellcat' started by WNY Cat, Apr 15, 2016.

  1. WNY Cat

    WNY Cat SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Nov 16, 2014
    Messages:
    563
    Likes Received:
    357
    Trophy Points:
    513
    Vehicle:
    Challenger SRT Hellcat
    I bought new rear control arms from Spohn Performance and I thought I would install them today. I started with the hardest bolt to access and I ran into a problem right from the start. After loosening the bolt and removing the nut, there is no way to remove the bolt because it hits the body of the car. It looks like the design would work if the bolt was installed from the other direction.
    The only way I can see this being assembled was to put the control arm on and then lower the whole body on to the frame. Maybe somebody on the assembly line installed it in the wrong direction? I just re-torqued it for now.
    Does anybody know the answer to this puzzle?
    Brampton Builder DGatzby

    Thanks,
    John
    2016-04-15 13.43.16.jpg 2016-04-15 13.44.20.jpg
     
    • Useful Useful x 1
  2. Ray Hunsaker

    Ray Hunsaker Silver Member Hellcat Car Club Gold Supporting Member HCC Charter Member

    Joined:
    Jan 26, 2015
    Messages:
    511
    Likes Received:
    140
    Trophy Points:
    153
    Vehicle:
    Challenger SRT Hellcat
    wow that's weird. good luck
     
  3. PlumCrazyHellCat

    PlumCrazyHellCat Senior Hellcat Member

    Joined:
    Feb 14, 2016
    Messages:
    422
    Likes Received:
    98
    Trophy Points:
    58
    Location:
    Ft. Lauderdale, Florida
    Vehicle:
    Challenger SRT Hellcat
    Eventually the bolt head would have to be cut off to replace control arm bushings when they wear out. A small angle grinder with a cutting wheel would be another option too.
     
  4. sgoyal

    sgoyal Gold Member

    Joined:
    Jul 10, 2015
    Messages:
    2,236
    Likes Received:
    791
    Trophy Points:
    458
    Location:
    Suwanee, Georgia
    Vehicle:
    Challenger SRT Hellcat
    Did you look at speedlogix instruction. I understand you bought from different place but their instructions are very good. I just changed rear trailing arm and took 10 mins after I read their instruction
     
  5. WNY Cat

    WNY Cat SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Nov 16, 2014
    Messages:
    563
    Likes Received:
    357
    Trophy Points:
    513
    Vehicle:
    Challenger SRT Hellcat
    This is not the tension (trailing) arm. There are three arms, one underneath the axle and two on top. This is on top towards the front of the wheel well.
     
    • Useful Useful x 1
  6. sgoyal

    sgoyal Gold Member

    Joined:
    Jul 10, 2015
    Messages:
    2,236
    Likes Received:
    791
    Trophy Points:
    458
    Location:
    Suwanee, Georgia
    Vehicle:
    Challenger SRT Hellcat
    I know.. What I meant to say that ... Speedlogix has instruction for these arms..

    Look at this document and see if it helps

    http://www.speedlogix.net/instructions/razorsedge/SX-LXLC-ACA.pdf
     
  7. WNY Cat

    WNY Cat SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Nov 16, 2014
    Messages:
    563
    Likes Received:
    357
    Trophy Points:
    513
    Vehicle:
    Challenger SRT Hellcat
    sgoyal Thanks for the info.

    Here are the directions from Razors Edge.

    Screenshot_2016-04-15-15-57-48-1.png
    Use a Sawzall to cut enough of the body away to access the bolt head. Then saw the bolt head off. Really? I'm gonna think about this one before I start sawing the body.
     
    • Agree Agree x 2
    • Useful Useful x 1
  8. Aarcuda

    Aarcuda Gold Member

    Joined:
    Oct 22, 2014
    Messages:
    1,428
    Likes Received:
    459
    Trophy Points:
    258
    Location:
    The Boonies
    Vehicle:
    Challenger SRT Hellcat
    it sounds like the cutting was just to allow you to get on the head of the bolt to loosen it. just cut the head off now that you have it loose
     
  9. WNY Cat

    WNY Cat SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Nov 16, 2014
    Messages:
    563
    Likes Received:
    357
    Trophy Points:
    513
    Vehicle:
    Challenger SRT Hellcat
    I tightened back up right away. I moved on to another project for today.:)
     
    • Like Like x 2
  10. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

    Joined:
    Jan 16, 2015
    Messages:
    2,882
    Likes Received:
    1,452
    Trophy Points:
    598
    Location:
    Twin Cities, MN
    Vehicle:
    Challenger SRT Hellcat
    John, you show the black arm, and that is the front upper. I can't take a wheel off now to help, but shot a picture. Also noticed both the front and the back have the nuts basically facing each other, or in other words the front has its nut towards the back and the back towards the front. I also shot this picture of the front upper, but it is not tracking with your shot. Is that the back?

    image.jpeg

    The silver connector is the back upper, right?

    So I will tell you guys, after that install your wheel hop is cured! Also expect some clicking noise from the Delrin bushings, especially low speed, uneven roads. Seems to be no problem at higher speed and smooth roads. But, it will be a spinning machine! Either it is worse for traction now, or these new NT05's really, really suck compared to PZero. It was 78 here today and they spun as bad as 48 degrees, no difference.
     
  11. WNY Cat

    WNY Cat SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Nov 16, 2014
    Messages:
    563
    Likes Received:
    357
    Trophy Points:
    513
    Vehicle:
    Challenger SRT Hellcat
    My photos were taken on the passenger side if that helps. It's the short bar where it attaches to the chassis. Not the spindle end.
     
  12. fnkychkn

    fnkychkn swollen member Gold Supporting Member

    Joined:
    Jan 24, 2015
    Messages:
    1,369
    Likes Received:
    486
    Trophy Points:
    368
    Location:
    plastic take-out container
    Vehicle:
    Charger SRT Hellcat
    assuming you're trying to replace the tension link (#6 in the diagram).

    [​IMG]

    if so, you'll need to remove the cross member bolts on the repair side to lower that side of the cross member. this should give you room to remove the front tension link bolt.
     
    • Useful Useful x 1
  13. FireLane

    FireLane SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Jul 23, 2015
    Messages:
    380
    Likes Received:
    103
    Trophy Points:
    153
    Location:
    Palm Beach County, FL
    Vehicle:
    Charger SRT Hellcat
    The only way to change out the rear front upper control arm is to drop the rear subframe. The "Band-Aid" fix is to cut the head off of the bolt and use a new bolt going In from the other side. If you drop the rear subframe to do it you will need to do an alignment after.
     
  14. fnkychkn

    fnkychkn swollen member Gold Supporting Member

    Joined:
    Jan 24, 2015
    Messages:
    1,369
    Likes Received:
    486
    Trophy Points:
    368
    Location:
    plastic take-out container
    Vehicle:
    Charger SRT Hellcat
    not if you only drop one side without loosening the other side.
     
    • Useful Useful x 1
  15. WNY Cat

    WNY Cat SRT Hellcat Supporter Gold Supporting Member

    Joined:
    Nov 16, 2014
    Messages:
    563
    Likes Received:
    357
    Trophy Points:
    513
    Vehicle:
    Challenger SRT Hellcat
    Yes. #6. Drop the sub-frame? I'm doing this with the car on 4 jack stands and one hydraulic jack to support the side that I am working on. Since I couldn't get the bolt out, I just tightened the 2 bolts back to 67ftlbs and 72ftlbs as stated in the Spohn assembly instructions. I haven't tried anything else yet.
     

Share This Page

Search tags for this page
2015 challenger hellcat rear control arm bolt captured
,

hellcat challenger spohn

,
hellcat control arms
,
razors edge challenger control arms
,
upper front position