Just put on a buggy leaf on my truck. the main leaf is off a downsized cherokee and the buggy is a 86 toy rear main cut at the center pin about 27" long. it is connected at the frame with a 1/2" bolt and 2 u-bolts. I don't know much about buggy leafs but I think that it should drop a little bit more than 4" off the frame. And the main pack doesn't start to fan at all even when the tire is off the ground.