I have the IRO front to rear swap. The front springs were stiff. The front trackbar came with a moog end, now Im sure its chinese. I ordered replacement and it came completely unmarked so I know its a cheap import. Get an adjustable rear trackbar, JKS is what I have now super nice. I honestly think a double shear front is the way to go period. I think four springs is the way to go also so you might as well go to 4" lift. Talk to people about shocks cause cheap ones suck I had hydro and they were ok for about a year then they started leaking.