Outer Limits 4x4 Board

i've been reading a bit about the place re suspension principles etc. learning a little, confused alot. so on a stock defender/RR rear set up, what does lengthening the trailing arms do to the on road/off road aspects of the design. now i don't mean just lengthening in the same plane so as to get the ears up out of harms way but actually moving the chassis mounting point forward. i know the outrigger is in the way, i'm only talking in therory. how limiting to flex is the rear ball design.

Sam/Tony- did the rear set up in the orange d110 have more vertical seperation than a stock defender, were the upper arms at chassis mount further forward and were the trailing arms in the same plain as stock or longer/forward as well. how did the rig handle on road type of driving

cheers, serg

BTT, come on some one must have an opinion
serg

I dont know much about the mods to the link design on the orange def the haultech boys had but one of the benefits of lengthening the rear arms is less rear steer, which in a rangie/defender is quiet bad when you have soft springs.

Mine is a bitch when it comes to corners but its got soft as all shit springs.

Lengthening the rear lower links will help off road and should not have adverse affects on road.

For the same axle articulation, the links will travel through a smaller arc, which is beneficial for the rubber front mount.

Because these links are parallel (looking from above) they converge at infinity. This means that the roll axis is parallel with the links (looking from the side). The angle of the roll axis affects the roll steer.

So it depends where the new front mount is located whether roll steer is reduced, increased or unchanged.

If the mount is at the same height but further forward (which is what I think you are saying), the roll axis will be flatter and the anti-squat will be reduced.

If you have a fair bit of suspension lift, the reduction in roll steer and ant-squat will improve matters.

Longer links will bend easier if not made stronger.