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Homebrew Control arm relocation brackets +pic

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Old Jan 26, 2002 | 06:02 PM
  #1  
Spifz's Avatar
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From: Phoenix, AZ
Car: 1986 Z28 / 2012 CLS550
Engine: F-1R -> Aluminum block 540
Transmission: T56 Magnum + GForce gears
Axle/Gears: Ford 9" 3.00's + Eaton Truetrac
Homebrew Control arm relocation brackets +pic

Here is a picture of my control arm relocation brackets, they are bolt on, because I didn't want to weld anything to the housing just yet. Both of the insets are of the right side. I think the total drop is 2.25 inches, I had an angle figure around here somewhere, but I don't see it now. I will take a drive after supper, see how they do!
Attached Thumbnails Homebrew Control arm relocation brackets +pic-controlarmrelocation-s.jpg  
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Old Jan 26, 2002 | 07:20 PM
  #2  
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
It looks like you only have the brackets attached to the housing with one bolt. Don't drive it. There's nothing from keeping the bracket from pivoting on that single bolt.

A proper bracket should be gusseted and welded to the old mount. A bolt-on bracket should have 2 mounting points for strength.
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Old Jan 26, 2002 | 07:33 PM
  #3  
Spifz's Avatar
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Joined: Jan 2002
Posts: 203
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From: Phoenix, AZ
Car: 1986 Z28 / 2012 CLS550
Engine: F-1R -> Aluminum block 540
Transmission: T56 Magnum + GForce gears
Axle/Gears: Ford 9" 3.00's + Eaton Truetrac
Sorry for the lack of clarity in the picture, there's a hellish anti-rotation device built in there ... I know some of the commercial relocation brackets use the shock mount with an arm to keep the bracket from rotating, I use steel arms that brace up inside of the original mount. This is a Moser 9" setup, so its just a little different from stock looking up in there.

oh yea, still didn't get out and test it yet.
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Old Jan 26, 2002 | 07:47 PM
  #4  
AlkyIROC's Avatar
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
I still don't think that will work. The way the lower control arms work is to push the differential rotational forces forward. You should see the wrinkles in my floorboards. This means that the upper mount bolt in the pic will push forward. If there's nothing properly securing the relocation brackets then the LCA will actually push the bracket backwards since the LCA won't move anywhere.

Weld them on. There should also be bracing across the back on the brackets.
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Old Jan 27, 2002 | 12:47 AM
  #5  
Spifz's Avatar
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Joined: Jan 2002
Posts: 203
Likes: 13
From: Phoenix, AZ
Car: 1986 Z28 / 2012 CLS550
Engine: F-1R -> Aluminum block 540
Transmission: T56 Magnum + GForce gears
Axle/Gears: Ford 9" 3.00's + Eaton Truetrac
Yep, did it all in Working Model 2D already, you are right, *if* there isn't anything to keep the bracket from pivoting,
the LCA will actually push the bracket backwards
.


From my gentle testing, there is a noticable improvement. I can almost open the secondaries up in 2nd without breaking the tires loose.


Thanks for the input Stephen 87 IROC. My current brackets are really only a test of the 'theory of relocation.' If I like the results, I'll mill a solid replacement out of aluminum that will extend up into the current housing LCA attachment point, completely up to the housing.
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