2012 Silverado 1500 - Cognito UCAs, NAPA equivalent ball joint?

[tabarnak]

Hey all

 

So, with all this extra time at home, I decided to bust open the boxes for my "I'll get to it eventually" front lift. Truck is a '12 Silverado 1500 Z71

 

I am installing a Fox 2.5, 2.5" lift, Cognito UCAs, diff drop, and then 1" block lift in the rear. I did some reading, and I'd learned that the Cognito ball joints are apparently... not reliable, so I looked up a part number and went for some Napa joints. I think I got confused along the way, though. I ordered Napa PN 260-1313. The Cognito ball joints which came in the kit were "110-90141". Put them both on the bench, and I'm pretty sure the Napa ones are for a different knuckle... see photo attached - thread length and taper width don't match.

 

Would anyone be able to help me figure out which Napa/Spicer ball joint is the same fit as the Cognito one?

 

Thanks!