I’ve got an 05 lbz swapped SUT with a 6 inch fabtech lift. Due to the heavy Duramax in the front it has a pretty good rake/nosedive in the front end even before the lift kit (done about 2 years ago now). Finally deciding I want to do something about it because I also think it’ll help a little bit with my suspension components up front being close and sometimes rubbing together and it’ll look 10x better level. If anyone is in a similar situation or just confident and smarter than me what would y’all do? Can you still use some kryptonite torsion keys with the fabtech lift? Stock keys and upper control arms by the way

 

Nice truck, I my guess is you have coils in the back, I think if can get the vehicle to sit level without such a rake you might just solve your nose dive issue.
My 08 had a nose low rake too, I dropped the rear, tweaked the front a bit and had an alignment done. It made a world of difference.