Need to Swap Knuckles for Cast LCA Change to Alum./Stamped LCA Spec?

[Truckboattruck]

2014 Sierra SLE 4WD needs a steering refresh. I'm looking to swap out my OEM cast UCA and LCA for OEM aluminum. I gather the ball joint stud diameter or length differs on the cast OEM UCA component group, but can't figure out if the LCA spec, tie rods, or anything else is different between the knuckles.

If the LCA components and others are compatible spec between knuckles I will just go with some cast arm spec aftermarket UCA, and then swap in aluminum LCA without changing knuckles. Input appreciated.

[Truckboattruck]

Alright well, I pulled the trigger on the knuckles and arms but shipping delays are pretty heavy. Gonna take a peek-a-boo when they show up and report back.