My truck has a 2 inch lift on the rear and the front torsion keys turned. Do I need longer than stock shocks for the truck?

I am doing a lot of work in the front end and may go ahead and replace the shocks all around as well just so that the parts have a similar age. The truck is at 150k and is starting to need the full overhaul on maintenace.

parts I am replacing already this weekend are upper control arms, lower ball joints, sway bar links, and the idler arm.