I want to try to start building a set of axles to put on my blazer after I get a lift I want to get a 4" or 6" sep lift and a 3" body lift and 36s or 38s maybe 39.5s so I thank I will need a corss over so I can drive it. so my ? is what kind of axle do I need to get? (I want to get something big like a dana 60 or 70 and maybe a 14 bolt s/f in the back) can you do a cross over on a dana 60 or 70? I wont get a lift for a year or two so I have time to build some axles and I want to build them right so it might be real slow going. thanks guys Go prepared I have a Shotgun a Rifle and a 4WD(K5) and Country Boy Can Survive!!!!