Anyone know if I can just bolt my ifs spindles on my axle ??
No they will not. I believe you need the later style solid axle spindles, and then you can get hub spacers from sky offroad to use your ifs hubs and fj 60 vented rotors with your v6 calipers. Might be cheaper to just get wheel spacers if thats the case, and run your v6 calipers. Somebody feel free to chime in on this if im incorrect.