I have a 2005 Dakota QC 4x4. It already has a 2" leveling kit and 2" blocks in the rear. Is it possible to either install a new torsion key or do a torsion adjustment too? What risks would come with either? Sorry if I'm asking a dumb question but I'm not very savvy with my truck yet.

 

These trucks do not have torsion bars. Best you can do without a totally custom front suspension is a leveling kit. Since your 4x4 , do not go over 2" or you will destroy the front end parts. Even with a 2" kit, you are putting extra stress on these parts (tie rods, CV joints, ball joints), so if you do a lot of 4-wheeling, don't be surprised if something breaks. Welcome to DF!