This is just like our Rear Axle Simple Swaps with a few exceptions. First off you only need 3 Ubolts of one size and 1 extra that is 4 3/8"". Secondly, the cast in place perch has a unique pattern so we give you the unique pattern Ubolt plate and the standard Ubolt plate for the tube side. Lastly, you only need 1 Spring Perch so you get that too. It comes with our Curved Shock Brackets rather than the shorter ones so that you can ride up the C better too. It costs' the same as the rear because the ubolt plate needs to be 1/2" thick to make up for the lack of bends and the shock brackets are more expensive. We can swap the perch & plates for the 3" if you are running the wider Ford springs, just give us a call.