Moving leaf springs INSIDE framerails

the way im thinking that you are talking about is how the comp. abc use to do it when they where in business.. i had that kit on my car was ok but i just didnt need all that tire ..i had 29/10.5w on 10" rims back then but took everything back out and put it stock with the mini tub and now i have 28/10.5 slicks on 8" rim with i think 4" backspace not a problem..ill see if i can post a pic of my mini tub today cause mines a little diff. from just cutting open the factory tub..i cut it open add some metal then cut the outside edge off and add some more to the qt and have plenty of romm for tall tires if needed..mike