mccustomize
Explorer
Since you are going full custom for this endeavour, you might want to consider the OUO ALAs. The give the ability to fine tune fore and aft position, as well as adjust caster angle.
I've got them on my new truck. Additionally to the geometry setup, they allow for freer articulation because of the high misalignment angle rod end used.
I am cutting everything off the super duty axle, my current 3 link will replace the radius arm design. Radius arms have an inherent bind in the system that does help reduce roll in go-fast and street scenarios but my 3 link with a properly tuned anti-rock will outperform the radius arms on the trail. The 3 link is the clear choice for what I want to accomplish.