Does it matter which way you traiingulate your upper link bars?

Edited: 9/27/2006 8:14:23 PM by smallz

On a traingulated 4 link does it matter which way you position the upper bars? If you mount then traingulating to a crossmember is it the same as traingulating to the top of a rear end housing? Heres some pics of what i mean, dont mind my paint skills.

Edited: 9/27/2006 8:17:31 PM by GreenDream

No, it really doesn't matter, as long as it is set up correctly, either way works. It's just a personal preference or what is easier to do with your specific vehicle.

Depends on if your bags are on your paralel bars or triangulated.

doesnt matter.

ya, if you have your bags mounted on your tri bars, youll want it as #2. otherwise, it doesnt matter.

Alright thanks guys, because i had mine mocked up where they traingulated towards the center of the rear end housing but if i mount them there, my tabs will be sticking about as high as my wheels. So i was just wondering if it made much of a difference.

Yea, what Dave said.

Hi Dave.

I agree w/ everyone. It doesn't really matter. They say you should have about 40-45 degree of angle.

YES! It does matter which way the bars are triangulated! The triangulation of the bars is what sets the "roll center"

the "roll center" is the point, that is set by the suspension design, that the vehicle rotates around (side to side.)

By triangulating the top bars or the bottom bars changes the "roll steer" effect that the rear end creates while leaning into a corner.

If you are setting up your 4-link as a reverse, I would try to use design #2.

Originally posted by BioMax



YES! It does matter which way the bars are triangulated! The triangulation of the bars is what sets the "roll center"

the "roll center" is the point, that is set by the suspension design, that the vehicle rotates around (side to side.)

By triangulating the top bars or the bottom bars changes the "roll steer" effect that the rear end creates while leaning into a corner.

If you are setting up your 4-link as a reverse, I would try to use design #2.Max Fish of Bio Customs? The guy that wrote an article in StreetTrucks a few years back? Maybe?

Anywho, Rather than using option two in a rear setup, it would be better to steer away from the rear setup all together, true? haha. And as far as the roll center, I could see it being an issue in something like a circle track car, or even someone who likes taking corners at high speeds, but otherwise, on a daily driver and for someone that wants to go up and down, either triangulated setup would work just as well as the other (although option 1 pictured above would be better in a high HP application because the energy would be transferred accross a larger area of the chassis, rather than a single point on a x-member).

Quick question, on the topic. Would triangulating both upper and lower bars (in opposite directions of course) eliminate roll steer all together? I'm trying to imagine the axle moving through a turn in combination of the triangulated bars and I can't see either wheel being more forward than the other?