Bossed out 6112/5160 questions

About to pull the trigger on a bossed out 6112/5160 kit with rear shackles. I have questions about the options though. I will never off road for the sake of offroading, but I hunt and may occasionally pull a camp trailer, so those are my considerations outside of daily driving.

Question 1: Should I consider adding a leaf over shackles, if so why?

Question 2: Which of the crap below do I actually need (not planning on uca's as I will set the fronts at 1.9)?

Appreciate any personal experience

 

depends on setting , if going 2.5 or higher i would do the diff drop, I have 6112 set at 1.9 with rear toytec shackle set at 1 inch hole. All u need

 

i didnt need any of the extras and i went with the top settings. i'd go leafs. i did shackles and kid of regret it it. all the aftermarket springs come with a lift unless u find stock springs.

 

What do you regret about the shackles?

 

That I have to get stock ones. I want the icon spring pack but they do like 1.5 lift. Plus the 1 to 1.5 shackles, that would be too much lift in the back