only person to build those beams on here are the fab shops and RaceRanger, To build the build the beams you mount them at 90* but you need an angle finder to build the lift into it haha i have some built just waiting to plate it
but basically i did it by mounting the beams at 90* and measured from the bottom of the beam to the floor and lowered it a few inches for the lift i wrote down the degrees and i cut the beam straight then you weld on how many inches you want to extend out, after you cut a piece for the bottom of the beam and that should pop out a few more inches than the top so the rotor will mount at 90*
it's kinda hard to explain haha
83-88 are the forged beams you can cut and weld on