Do i need a specific knuckle for a 6 in lift kit

[newtogmc]

I'm new and clueless to lifts, my father is the actual owner of the 2004 yukon 4.8 rwd I'm referring to. He paid a shop to install a RC 6" lift kit but they botched it and outright didn't install everything, I already replaced the wheel bearings, center link, inner/outer tie rods, pitman/idler arms,sway bar links and control arms to start but i noticed the control arm was loose despite the proper torque on the knuckle....so the hole is stretched or whatever so now the knuckle has to be swapped but I don't know if I need a 3" lift specific knuckle or stock or maybe even swapped from another gm compatible part. I'd greatly appreciate some help, Thank You

 

[swathdiver]

If yours were mine the first thing I would do is get a part list from the specific lift that was purchased and see what, if anything, is missing.

 

[bodabdan]

You may get better responses in lifted section.

 

[Fless]

You may get better responses in lifted section.

Moved to the lifted section.

 

[newtogmc]

If yours were mine the first thing I would do is get a part list from the specific lift that was purchased and see what, if anything, is missing.

I've been trying to gather that but the knuckle is my main issue right now as there's clear movement in the top mount for the control arm so it needs replacing first an foremost

 

[newtogmc]

You may get better responses in lifted section.

Thank you