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Old 03-21-2012, 09:02 AM   #57
Jacob 76
 
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Name: Jacob 76
Title: Let'er Buck
Status: Not Here
Join Date: May 2011
Location: Colorado
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Posts: 365
There is a few things to consider with a 4 link as far as handling go too. On a parallel 4 link with a trac bar your roll center is wherever the trac bar crosses the center line of the vehicle. Ideally the should be as close to your vehicles center of gravity height as possible but this is hard to do because generally that's about the same height as the camshaft. Triangulated 4 links can be made EXTREMELY strong (Kenworth uses a sort of 4 link on there 8 bag suspensions) but you have to keep the triangulated set (generally the uppers) at a pretty severe angle. The downside to that is it will hinder extreme wheel travel but in your case this shouldn't be an issue as it will be more of a street truck. It's hard to explain without pictures but with a triangulated setup you can kindof put your roll center wherever you want by changing link angles (up and down looking at it from the side). The closer you can get your roll center to your center of gravity height the better it will handle. If you can get you VRC (vehicle roll center, found by connecting your front and rear roll axis') at the same point as your center of gravity youd be golden. My opinion is do a triangulated 4 link.
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Darcy - 12v 97 F350, back-halved, 4 linked, and 24" of rear travel and 16" front.

Herman - Twin Turbo 7.3 Currently setting with a great big hole in the block...

Last edited by Jacob 76; 03-21-2012 at 09:15 AM.
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