I'm running 275/35/20 Mickey Thompson tires on all for corners and the 20x10 wheels that I have are +40mm offset, which works out to just about 7" back spacing. Your link says that those particular wheels fit the rear only, it's worth a call to the manufacture to see why that is the case imho. I wound up using the Steeda springs for my car but can imagine that the pro-kit springs will be very comparable@84Ttop
Hey man, I remember you said your running 20x10's on all four corners. What is the back spacing and tire size specs? I am looking at these: MMD Axim Silver Mustang Wheel - 20x10 101034 (15-16 All) - Free Shipping
along with a set of pro-kit lowering springs
Do you think I could fit these on all four corners?