Outer Limits 4x4 Board

just curious as 2 the length of the shackle in a ladder bar setup ?? wot is the length determined by ???

the length of the shackles on your leaf spring usually

How much of a man you are!!!

Josh_GQ wrote:the length of the shackles on your leaf spring usually

my shackles r 8" long !!!!!!!!

BUMP!!!!!!!!

well come on im sure there is more people out there running ladder bars ????

Are you talking about the Sam's offroad type of ladder bar?

I would have thought that the longer the shackle the better (less angle change) depending on available clearance etc.

depends on how you want it to behave. the link end of the shackle is your instant centre, changing the length of the shackle will change the height of it obviously, so it is the determining factor on wether you will squat or load up under torque..

Wendle wrote:depends on how you want it to behave. the link end of the shackle is your instant centre, changing the length of the shackle will change the height of it obviously, so it is the determining factor on wether you will squat or load up under torque..

ok

so basically the flat the top bar the better ?? and the longer the shackle the better ??

Before I start, my opinion is just that an opinion. I don't claim to actually know what I'm talking about just like to make educated guesses.

I think you should have a shackle 1/2 the length of your spring shackles (especially seeing as yours are so long). The pin of the shackle should be level (horizontal) with your front spring eye mounts. The angle of your torque arm should be close to horizontal if you want little anti-squat or steeper if you choose to run a tightish limiting strap.

I used basic principals of link suspension design to formulate this and to my understanding, it should work. However, I think you'll struggle to mount the shackle where I suggested due to driveshaft interference.

Hope it works out.

yeah true

i wonder wot effects running the trac bar like this will have ??

ok pic wont work 4 sum reason but i wot i mean is run the trac bar from centre of diff 2 one side at other end so i can get the mount lower

You could make the diff mount higher but it the closer the centre of it is to the spring perches, the less chance of binding. IMHO

if you are chasing low ani-squat numbers, you want the mount as low as you can get, and as close to the front of the truck as you can get.
the link in your picture is gonna be trying to push the truck off the side of the axle under load. might be allright, depends how much faith you have in your springs to hold everything aligned laterally.