4 Link

[Mattapo]

there are a couple different ways I have seen people do this.

is one way "Better" than the other or what??
also what is the best legnth for the links?
can I have them all the same legnth?

[4sum4]

those pics are the best 4 link set up,The length of the links will depend on how much flex it will have and you need to have the upper links shorter than the lowers and seperation off the links at diff end and seperation between links at chassis end will give you the squat you want,the lower the links at the chassis end will give you a better roll axes.

[locktup4x4]

I set the top one last year.

In the top picture you will have to build a cross member for the lower links to attach to.
In thee bottom picture it looks like the lower link mounts are welded to the frame. You need to cross member.
I like the dual triangleulated 4 links. The main reason is with the lower links meet under the drive shaft they are less likely to drag over rocks your putting your rear wheels on. You can have all the same length links but you don't need to. You don't want the upper link any shorter than three quarters the lower link. I build my links as long as I can. Make the upper link mount adjustable at least 3 inches. What size tire you run can dictate what your vertical separation should be at the axle. 7 to 9 inches of separation is about average for 36"-38" tire. This is a quick and dirty run down. If you need clarification or more detail just ask.

Jason

[80UTE]

To get the geometry right depends on the wheelbase and i set the links up to a theroretical intersection point along the chassis, bottom link position relative to axle centre line and seperation of the link arms at the diff end to acheive neutral squat. Also the shape of the chassis adds to the outcome and is major part of the design process On completion and drive testing each time it has worked . Its hard to determine arm lenghts and seperation as its determined each time the job is done. Ive been requested to send a kit interstate but i wont do it as its really a custom fitup as you go.

Wally