3 and 4 link suspension help

[Nuts]

Calculator smalculator! You'll spend hours doing math and trying to "get it right" on paper, then once you actually start trying to make the numbers happen on the vehicle you'll find out EVERYTHING is in the way and almost none of the calculations can be mounted where they're supposed to be. So with that said, and what has worked for me is to make the uppers 70% the length of the lowers, make the vertical seperation have the distance on the frame that it is on the axle, and try to get the uppers as close to 45* as you can. Then put everything else where it"ll fit.

[elmer91]

Nuts, I want to do it just the simple way, with little calculations, but im doing this as my senior project for college, so they will want to see the numbers part of it. probably just gonna put some good numbers in the calculator, then move the stuff around as necessary.

[twiztedzuki]

Originally Posted by Nuts

Calculator smalculator! You'll spend hours doing math and trying to "get it right" on paper, then once you actually start trying to make the numbers happen on the vehicle you'll find out EVERYTHING is in the way and almost none of the calculations can be mounted where they're supposed to be. So with that said, and what has worked for me is to make the uppers 70% the length of the lowers, make the vertical seperation have the distance on the frame that it is on the axle, and try to get the uppers as close to 45* as you can. Then put everything else where it"ll fit.

I laughd also when read this, gotta b a jeeper

[Nuts]

Originally Posted by elmer91

Nuts, I want to do it just the simple way, with little calculations, but im doing this as my senior project for college, so they will want to see the numbers part of it. probably just gonna put some good numbers in the calculator, then move the stuff around as necessary.

Are they going to come out and measure the rig? Just steal the calculations from a werock forum and show them. Then throw it away and go put **** where it'll fit on the buggy,jeep,whatever.

Originally Posted by twiztedzuki

I laughd also when read this, gotta b a jeeper

Probably, but everybody was new once so no shame in asking for help. Unless your screen name rhymes with yellow jacket, then your mind works totally different and nobody will have a clue what you mean!

[elmer91]

Slowly getting everything figured out. in the process of mocking the 4 link up. Does any one have a 3 link front that i could come look at? i know i can find pics online, but i do better if i can see one in person.

[Nuts]

Saw a link to this on hardline.The guy was asking for help, but already has a good start. Theres a lot of calculations and modles in it. I wouldn't do anything suggested there but some of it might help you out.

http://www.4x4grace.com/vBulletin/sh...t=13619&page=2

[mckeddie]

Calculators are worthless. You will never know your true roll center, or anything else. And like said above, nothing will fit where it needs to go.

We tend to use the same method Adam used above, except we keep the vertical separation of the frame end about 75% of the axle end. We've found for going fast, get the links parallel to he ground, for climbing, it seems that if your links have a Little slope in the rear, it tends to hook and climb better. It's a super scientific approach, I know, but it woks. We usually try to keep the lowers close to 36" too.

[tbshakie]

I agree with the rules of thumb that mckeddie. but the calculations are not worthless. Will you be able to get thing perfect.....No. you will have to compromise. by running the numbers and all the scenarios, you will be able to choose where the compromises will be in your system and not be surprised on your first wheeling trip

also, the top links should be 75 to 80% of the length of the bottom links.