I know there is plenty of posts out there but I can’t find definitive info. I have a 2012 Tundra DC-Grade, 4.6 4WD. I have a Bilstein 5100 kit on order. Planning on middle setting to compromise between front end lift and ride. I also have a set of coils (25000 miles on them) from a buddy’s 2013 Rock Warrior CrewMax. My question is, can I use my buddies springs (off a Rock Warrior CM) and how will it effect the ride and height? Seeing a lot of differing info reference the spring rate and application/interoperability. Uncertain how will impact my leveling attempt. Info appreciated.