Outer Limits 4x4 Board

have seen a few luxes round with coils over the bumpstops in the rear to give it a bit more hight, and give it more weight carrying capacity? was wondering what sort of coils they are using and if its a good thing to do or not??

Ford metior coils are supposedly the trick. Jack up the back of the vehicle with the highlift, they drop in between the rubber bumpstop on the bottom and jam onto the metal bump stop on the top, they sit there fine, give a great ride when loaded up with gear. When the vehicle articulated the rubber bump stop drops away but still remains is the spring.