thoughts on 4 Link angles (bagged C10)

[shock88]

so my friend is building a bagged C10 street truck, and i know there’s a million ways to skin this. I went over his house and saw these angles, this is at ride height….i’m not postive but i’m pretty sure this is pretty far off from performing correctly….any input? (sorry for the crude drawing)

 

[Chickntrk]

I don’t have any experience with lowered trucks but I’ve built quite a few 4 link jeep setups and I’ve always figured on a lowered truck you’d want the bars basically parallel at ride height? Some Jeeps I’ve done had angles similar to yours but they were lifted and could be parellel at ride height or there was interference when the suspension traveled upward (flex)

 

[shock88]

ya that’s what i was thinking, or i’ve also read at ride height it “should” be intersecting at an imaginary point pretty much at the cab of the truck, his is the complete opposite, realistically looks like it would intersect 3 ft behind the rear bumper…i wish i could tell him his suspension is going to lift and lock up under throttle but i’m not positive really

 

[6872xtc]

ya that’s what i was thinking, or i’ve also read at ride height it “should” be intersecting at an imaginary point pretty much at the cab of the truck, his is the complete opposite, realistically looks like it would intersect 3 ft behind the rear bumper…i wish i could tell him his suspension is going to lift and lock up under throttle but i’m not positive really

I believe that you are correct in the fact that the lines should intersect at a point forward of the rear axle. From what I remember, that point should be close to the center of gravity. Forward or rearward of it changes reaction somehow.

 

[shock88]

ya, i think he might have to find out the hard way, im sure the truck is going to react negatively in one way or another, and i no the way to fix it, but requires re-doing the whole design of his upper links. i definitely appreciate the input guys