4 link setup triangulated bars

is it better to run them from the pumpkin to the frame/cross memberor from the out side of the axle(close to the frame) to the center of the truck on a cross member was kicking around ideals today and got stumped i've done it both ways just wondering if one was more beneficiary thant the other

thanks guys

Bringing the bars to a point at the chassis is a better choice because the rearend is braced wider on the housing and the roll-center is attached to the chassis instead of the constantly moving suspension. Neither of these things are much of a concern on a daily driven vehicle. There has been a couple threads about this same subject started with a lot more info.

max you are my hero!

not to thread jack, but i have been wondering the same thing and something else.

on a wishbone, is it better to have the 2 sided part on the chasis or axle? and they don't seem like they would allow a good side to side unless the single mount was made to the middle of the axle, but idk if my thought process is right since i've never done one

would this be fine for a car? trying to not loose any interior room. will be setting it up as a 5 link just curious if i can offset the upper link like that.

why not run a two link with a pan hard bar then you can have all the room you want.

Originally posted by nightmare



why not run a two link with a pan hard bar then you can have all the room you want.

I hope you're joking! There is NEVER any excuse to run a 2-link, a reverse 4-link or any other improperly set up system.

Fuller- You can run the single point off-center like that, but it will be a compromise. The single point is the roll-center and with it being off to one side, the vehicle will act heavier when cornering in one direction than the other. This isn't terrible for a cruiser, but if expect any performance, it's not a good idea. But it's still better than a 2-link.

humanmachine- The wishbone should be addressed in the same way as you would address a triangulated system. The single point should be on the chassis too, but as I stated before it's not that big of a deal on a daily driver.

Edited: 8/12/2008 7:03:59 PM by humanmachine

ok, that makes since. So lets say the single mounted point on the chasis is off centered, would it pull the axle diffrrently (like sway it during travel) if the truck can do side to side compared to being centered? or is there a noticeable difference?

It's not so much how the rearend pivots in chassis, but more about how the chassis rolls around the rearend. The roll-center of the chassis should be a line drawn through the center of the front and rear suspension, called the roll-axis.

By the nature of things an a-arm suspension's roll-center (for our pourposes here) is always centerd in the chassis, by moving the roll-center off to one side of the rearend the roll-axis will no longer be a straight line through the chassis, but angled off to one side. This will make the chassis act heavier on one side than the other while cornering making it feel inconsistent.

Originally posted by BioMax



It's not so much how the rearend pivots in chassis, but more about how the chassis rolls around the rearend. The roll-center of the chassis should be a line drawn through the center of the front and rear suspension, called the roll-axis.

By the nature of things an a-arm suspension's roll-center (for our pourposes here) is always centerd in the chassis, by moving the roll-center off to one side of the rearend the roll-axis will no longer be a straight line through the chassis, but angled off to one side. This will make the chassis act heavier on one side than the other while cornering making it feel inconsistent.

you're like a college professor for trucks, lol i'm pretty sure i got what you mean tho