People may think you have been lazy because you are not posting any new photos. I know you have been working hard on the truck and it looks great!
Btw, I went on Friday to that Mississauga Air Cha Spring Shope on Midway Blvd and bought me some U bolts and center bolts, good service and not too expensive. I put the front springs together and they look good now. Not so good story with the rear springs, one side okay but the other side has 6 out of 9 leafs broken...
i think most would be frowning upon using toyota parts in a domestic rod but i have some buddies who rock crawl and they use the yoda diffs, you have a wide variety of gear ratios to choose from and lots of those have rear disc brakes as well. you can also get an electric locker from a factory toyota that would fit that rear, so posi on demand. where else would you get a modern rear axle thats narrow enough with 6 lug? i think those diffs are quite strong as well