Hangars from some mid 70's GMC pickup, probably a 3/4 or 1 ton. I couldnt tell, it was flipped on its side at the junkyard and half of it was gone. Drivers side shackle after the flip.

Passenger side hangar/shackle. I only have 2 bolts in at picture time, the other 2 were installed shortly after. No bolts on the bottom holes, thats my tow hitch frame...dont see a need right now for 2 more bolts.

As level as I can get horizontally to give a good idea of what kind of angle to expect with a similar truck after a 6 inch lift.

Pinion angle after the shackle flip. The level is there for reference, but I dont know how much help it is. I'm not using any shims, not even the factory ones. Just the leaf springs on the perch.l

Another pic in case the first one didnt help. Not sure if this is any better but oh well.

One more picture, maybe this is better than the other 2, I dunno..

I think it looks good when all is said and done. Took me a couple days goin at a leisurely pace to make sure I didnt screw up, but I'm happy with the results. No stupid blocks or shims!