Z'd Rear Frame

[scum1]

Hey guys im in the process of raising my bed floor and redoing the wood on my 63' swb c10, and i got the sudden itch to go a bit lower while im at it possibly.

i currently have bags in place of coils on the stock trailing arms, a bolt in c-notch, and lowering blocks.

I want to keep the trailing arms, instead of coughing up cash for a four link or the like.

What do you guys think about a z'd rear section such as this..Is this a common way to do it? I would just do a big notch but the trailing arms will bind on the frame.

what does that do to the pinion angle? Id have to z the bumper back down as well correct?