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Bolt-on Anti-Roll Bar Frame Reinforcement


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I fabricated some parts that enabled me to bolt on frame and mount reinforcement for a larger front anti-roll bar on my 240Z.  I used some 1/8" steel plate that I bent into a U-Channel to fit around the frame rails, 8mm x 100mm Grade 10.9 bolts and lock nuts and some 1/16" wall steel tubing to fit into frame and prevent frame from crushing when torquing down on bolts.  While I was installing this, I added some aluminum spacers between the anti-roll bar mount bracket and the bottom of the U-Channel to space the bar down slightly and give me more clearance to my lower radiator hose.  Below are some sketches and pictures of the parts and installation.

 

 post-1728-0-63322700-1361824786_thumb.jpg   post-1728-0-79711000-1361824855_thumb.jpg post-1728-0-17552600-1361824910_thumb.jpg

 

post-1728-0-85699000-1361824990_thumb.jpg  post-1728-0-14174400-1361825076_thumb.jpg post-1728-0-57957700-1361825187_thumb.jpg

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I was just thinking about this today! Looks very good, very similar to the now defunct PDK front mount.

 

I am running the a similar setup as well, same tubing, plate thickness, hardware, etc. I found it easier to have the bolts dangle down from the top when I installed my sway bar, but looks very clean.

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First of all, your drawings are very nice (I am a CAD drafter for a living) 

 

I think that your product will definitely satisfy a niche of people who do not have welding capability but want to beef up that area. Personally, by the time I am already drilling holes in a frame and fabbing plates, I am just going to fire up the mig welder and be done. I would follow John's advice. Best of luck to you. 

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