Looks GR8 as always, Mike!!
There was a thread awhile back about those crappy mounts from NAPA
I'm sure you checked this already and I'm not sure if it's the case here but some rear housings have one axle tube longer than the other. and they can be off that way. Check the measurement from axle flange to frame rail on both sides and set it from there.
As for the center pins I'm not sure on these years of 4X4's but most all cars that I have worked on with the leafs the pin is offcenter to the front so I would check it out.
I will be waiting for a call from you as to when you are going to make it up here
RJ22...
RJ22...