Thanks for the POL website, haven't seen that one yet.
The Posie springs seem to give an overall 3" drop, like the POL springs. The link below shows that.
http://www.posiesrodsandcustoms.com/super_slide_springs/1950-chevy-12-ton-truck/To give it the raked look, seems like Sid's axle drop would finish that off (along with the properly modified steering components). I was just wondering if you guys ran into any problems with the tires hitting the inside of the front fenders.