Yep limiting straps is part of the plan. I blew out both rear brake lines so new ones need to be ordered anyway. Didint think about the speed sensor lines.You will want to use limiting straps, even if you use spring retainers. With that down travel you may be pushing the limits of your brake line and ABS/speed sensor lines.
so the Bilstiens you are looking at have a compressed length of 18 and an extended length of 31? What model?
Your old shocks were 15 and 25?
I had the 5160s for a shorter lift so 14.9"/25" is the collapsed/extended length.
Unfortunately, the 5160s only come in 2 sizes so I need to change to the 5165s which will require me to change the upper mount over to a bar pin which Bilstein says is easy. The valving isnt identical but its really close.
All info is here: