home-made rear spring shackles

[cris well]

i'm thinking of bolting 2 sets of stock rear shackles together on a 93 single cab 1500 to drop it about 4 or 5 inches and i'm curious if anyone has done something similar.

i'll have to cut 2 squares out of my bed floor to allow for the spring eyes and part of the leaf so it doesn't hit.

i'm gonna weld something to them also so they don't swivel where i bolt them together.

it may be too much of an angle though for the drive-shaft??