I was looking under my VS ute the other day and noticed a valve in the brake line that was sort of operated via a spring loaded arm to the rear axle. I came to the conclusion that the idea of this was to apply more force to the rear brakes when the suspension is low in the back assuming that you have a heavy load on. Fair enough but in my case, since its got lowered springs, does it think thats its got a heavy load on when it dosnt? Does this need to be adjusted? I did notice once when I had to hit the brakes hard it locked up the back wheels first. Has anyone with lowered utes looked into this?