extended arms will correct the camber after a lift, and they are the only saving graces whaen it comes to flexing out a TTB truck. You also need the TTB drop brackets, they come with the lift kit, which ussually includes the TTB brackets, springs, radius arm cross member drop bracket (junk as far as I'm concerned) your drop Pitman and blocks for the rear. Don't forget that you will also need extended brakelines, shocks, and I'd think about upgrading the steering while your at it. I think there is more to it, but not sure off the top of my head. 512 is not a bad deal if it includes all that you need