Only way to change it is to get different wheels. Can't move the center of your wheel after its built.
PS-Is there any way you could type your questions in English, without all the ur, u, hav, or other weird abbreviations? It really gets old texting on a forum.

 

Put the old knuckles back on, or, go with less of a drop.

 

Back space can't be changed at all. It is the way the wheel is made. To change back space you must change wheels.

 

back spacing is built into a wheel. if your rubbing that bad (and not lock/lock) then go to a good tire shop. Performance wheel and tire if you have one.. they will measure you up and figure out exactly what you need. SPACERS are a NO-NO on lowered or lifted vehicles. (sorry IMHO). you need to get that corrected and put the right size wheel/tire combo on. you wont be able to do your normal tire rotation and will loose a few thousand miles of tire life but thats what you will have to deal with when lowering/lifting. just ask a rep at a tire shop to check what backspacing you need in a wheel. tire size and if they are a good shop they will help. Then stick with them. I have followed the same tire tech between three shops where i live only because he always gets what i need and i never have issues when dealing with anything.