sas radius arm question

[hondaridr24]

i am doin a d30 sas and im going to run coils and radius arms and i have seen trucks with a radius arm that come from the pumpkin to the radius arm and i have seen where they put two of the small radius arms is 1 ok or should i do two

 

[JohnnyU]

You won't need Y-links on both sides, only one side needs that for rotational control of the axle. Having the upper Y-link on both sides can cause binding issues when off-road, but increases the stability on-road.

 

[hondaridr24]

okay cool ill just do one, you think the top of the pumpkin is the best way to go? or the otherside?

 

[JohnnyU]

My y-link is on the same side as the differential.

 

[hondaridr24]

okay thanks and how long should i make the radius arms?

 

[dangeranger01]

Its up to you, im running extended factory arms. And they are 48" from axel center to hole on the flex joint.

 

[hondaridr24]

thats what i thought thanks man

 

[hondaridr24]

and for the track bar to stop the axel from rotating?

 

[AKBroncoII]

Track bar keeps the arc of suspension travel the same as the steering and controls side to side axle movement. Has nothing to do with rotation.

 

[hondaridr24]

and how long should i make it?

 

[BlackBII]

You need to make it as parralell as possible to your drag link.
(which will make the lengths of the two real close)

 

[JohnnyU]

As close in length as possible (and parallel) to the drag link. ±1" is probably alright.

 

[hondaridr24]

im retarded what i wanted to know was how long do i make the upper control arm? that comes from the top of the pumpkin correct?

 

[dangeranger01]

I would jut do it half the length of the radius arm. And make it adjustable, all it does is keep the axel from rotating forward and back. If its adjustable though you can adjust your caster for when you have it aligned.

 

[hondaridr24]

thats what i had planned on just wanted to make sure, thanks!