I have a 87 Sammi, I just installed a 3" Body Lift and purchase a 4" BDS Springs and Calmini 2" Shackle Reversal Kit. My question is will 34x10.5x 15 Swammpers fit? If so what kind of backspace wheels do I need? Oh yeah, this is a SPUA setup for now, don't have the welder for SPOA. Hopefully someone has this setup or can help meout. Thanks Chad