4 link tech... equal distance measurements

[Nordic1]

So I'm going to redo my rear with a 4 link design. When people say "equal distance uppers and lowers", do they mean like A or link B?

[OverkillZJ]

That's the most unclear diagram I've ever seen. Mark what lenghts are equal in each.

[happy]

haha...yeah its def. unclear

[Nordic1]

when you measure the uppers... do you measure the length of the arm (like bolt eye to bolt eye) OR do you measure how far forward/backward (as in parellel to the frame) they reach instead of actually measuring the length of the arm?

[happy]

i have no clue...

hope that helps

[Nordic1]

[FinlayZJ]

Ummm...........when you put it in a 4-link calculator, it will do that for you.

http://www.pirate4x4.com/forum/showt...ink+calculator

I'm not certain about the answer, but i'd say B b/c then the two would be parallel and keep the pinion angle the same due to the same arc length.

Are you using a calc. to find AS and stuff?

[nathaniel]

Ummm...........when you put it in a 4-link calculator, it will do that for you.

http://www.pirate4x4.com/forum/showt...ink+calculator

I'm not certain about the answer, but i'd say B b/c then the two would be parallel and keep the pinion angle the same due to the same arc length.

Are you using a calc. to find AS and stuff?

b is the way the 4 link calculator works.

If they aren't triangulated enough be prepared for a jeep that wanders everywhere.

[Kraqa]

THer eis no RULE as to how long each arm should be it totaly depends one how you want your rig to handle. Equal distant arms, then having your uppers moutn a little closer to the axle so that pinion can be set. this will make it very easy to acheive 100% anti-squat. that is why people throw that "Rule" out there. although it still depends on your frame and axle mount vertical seperation. there is no automatic answer. the closest thing to that is to copy a proven kit.

i ran 100% at first and then changed my VS on my axle end to acheive ~120% and it drives alot better and climbs like ugly on an ape.

[Nordic1]

i ran 100% at first and then changed my VS on my axle end to acheive ~120% and it drives alot better and climbs like ugly on an ape.

[nathaniel]

i ran 100% at first and then changed my VS on my axle end to acheive ~120% and it drives alot better and climbs like ugly on an ape.

I figured mine out the other day and its 107.6%

Climbs fine doesn't squat down and my front doesn't unload like most peoples since I have uppers that are longer than the lowers. At least thats what I think is the reason.

[Kraqa]

Climbs fine doesn't squat down and my front doesn't unload like most peoples since I have uppers that are longer than the lowers. At least thats what I think is the reason.

that could be from a number of factors not just the arms.

[BigDaveZJ]

So I'm going to redo my rear with a 4 link design. When people say "equal distance uppers and lowers", do they mean like A or link B?

So if people started talking about unequal length uppers and lowers would you think those are good enough to revamp a design someone who knows a lot more than you already came up with?

[nathaniel]

Climbs fine doesn't squat down and my front doesn't unload like most peoples since I have uppers that are longer than the lowers. At least thats what I think is the reason.

that could be from a number of factors not just the arms.

Got any ideas??

[Kraqa]

hmm 99% of the time it is weight transfer. what did you change frm before. deleated tire on the roof? soemthign liek that woudl be my first guess.

[Nordic1]

So I'm going to redo my rear with a 4 link design. When people say "equal distance uppers and lowers", do they mean like A or link B?

So if people started talking about unequal length uppers and lowers would you think those are good enough to revamp a design someone who knows a lot more than you already came up with?

At this point, anything anybody comes up with is better than my design (I'm still in the learning process before I slap something under my heep).

[Raacerx]

I agree with Kraqa. Longer uppers. I didnt have much choice because I run a CV rear driveshaft so the pinion is pointed way up. Longer in both respects.