So how much additional NVH did you notice after adding the K-member??
Thats does make sense, so it's more to keep the axle level than anything else, thanks i was having a hard time picturing that lol the front is easier to see what the sway bar does.. i am doing my homework on suspension thanks for the explanationDon't think of it as how the WHEELS are tied in, but how the AXLE itself is. While the rear wheels will always be parallel to each other, the entire axle can pitch relative to the chassis. Think of body lean, looking from the rear... One side dips down, the other lifts up, rotating around the axis of the driveshaft (roughly).
The rear ARB doesn't just run from one side to the other, it is also tied into the chassis at two points by the rear endlinks. The bar itself acts as a spring, providing resistance if, and only if, the axis of the rear axle wants to move relative to the axis of the chassis. Stiffer the bar (thicker material, and/or shorter length from link to axle) will tend to resist that angle change more forcefully, essentially transferring more of that load to the other side, since the bar itself is free to "rotate" around it's own axis.
Clear as mud, eh?
The front acts the same way, despite being independantly suspended.
Nice.
I'm jealous of your under carriage. Inspires me to clean mine again. Too bad my headers are starting to corrode (WTF HOOKER?!!)