Stock UCA with OME 887?

Wondering if UCA are necessary when placing OME 887 on a 2016 DCLB TRD Sport. And if any other is a necessity up front?

I am also installing Bilstein 5100 on all corners (with drivers lean plate spacer) and an add a leaf rear icon pack. Also doing bearing spacer.

tires for now will stay stock until I need new rubber
265/65/17

 

FWIW, I installed 888's on 5100's on the lowest perch, and I'm on stock UCA's. Dealer aligned it without issue and it drives great. I didn't need a bearing spacer. Up to you to add one now or wait to see if you need it. I used a 3-leaf AAL with the factory overload spring re-installed. I also did a ¼" spacer on the driver's side and I'm still about a ¼" low on that side.