Should 4 link bars be parrallel to ground at ride height? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 03-03-2005, 04:03 PM
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Should 4 link bars be parrallel to ground at ride height?

I checked the FAQ's, but no history on this topic. I'm scratch building my 4 link rear w/ panhard to go into a 28 Dodge with an 8 3/4. Any other geometry help on the 4 link would be appreciated.Thanks. Dan

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Old 03-03-2005, 05:47 PM
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hemi,

If you use the search function or knowledge base you will find tons of info re: your 4-bar setup.
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Old 03-03-2005, 06:06 PM
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Thanks Cboy, But....

I re-did a search, and there's lots of info for triangulated 4 bar, or oval track, or drag race etc..... This is for a street rod , using a parrallel 4 bar with panhard. I need to know how the lengths of the bars are figured out, as well as if they have to be parrallel to ground etc... Thanks Dan.
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Old 03-03-2005, 06:21 PM
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As cboy pointed out, there's tons of setup info for the 4link available on this forum. Don't be discouraged because the reference seems to be to a triangulated 4link. The same angle principles, when viewed from the side of the car, apply for both cases.

As you'll see, when you view these threads, setting all 4 links parallel to the ground will result in extreme squat. On the plus side, there will be no binding as you corner during street driving. If, however, you keep the links parallel to each other, but at an angle, to the track surface, with a tangent equal to the CG height divided by the wheelbase, you'll have no squat or rise AND there'll be no binding during cornering. More work is required if you want to eliminate the tendency for the driveshaft torque to unload the right rear.
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