Pirate Jacks disc brake conversion kits

So the 4 bolts that hold the spindle on the lower ball joint hit the lower control arm where the sway bar is mounted. I'm hoping i can get shorter bolts with a differnt (smaller lock nut) and that will help. I did a search but didnt really find any answers how others delt with this issue. It is the MBM kit going on my 71 Demon. Any help would be greatly appreciated.