Getting the Icon RXT leaf packs.

I currently have a icon stage 5 kit installed, so do I need to get the rear rxt 2.5 shocks? Icon recommends them for the rxt leaf pack.
If I don’t get the rxt rear shocks will I be fine running the regular 2.5s in the back with my rxt leaf pack?

also, do i need extended brake lines? If so, what size and any recommendations?
Thanks so much.

 

I believe my icon add a lead offers 1.5 inch and my icon 2.5 rear shocks add 1.5 for a total of 3. Is that how that works?

not sure how much lift the new rxt pack provides. Doesn’t say on the description.

 

ohhh ok I just saw. I’m going to run option 2.

icon recommends their rxt long travel rear shocks

my shocks are standard not long travel. I hope I don’t damage the rear shocks running this leaf pack.
Thanks for the info.