As for your RUF, i believe your rear springs will have a metal sleeve inside the rear bushings. It is a pita to get out and then you have to find the larger outside diameter bushings....which for me was very, very hard. I forget which years did not have the metal sleeve but I know i just did RUF on an 81 and those packs did not have the metal sleeve. My 85 runner did. So maybe get rears from a first gen?? You will most likely need to add another 1 to 2 leaves to the rear pack in order to have arch at ride height, otherwise the springs will sit pretty close to flat. Just experiment to see what you like. As well, if you are running the front spring hanger in the stock location you may need to check out and see if your shackles hit the body mount. I know on my runner the shackles were laying on the body mount and I had to run boomerang shackles.
Im running RUF's + 2 misc leaves and 6 inch shackles. Stock rear chevies with the overload and stock shackles and it sits higher than stock but not a whole lot higher. I want to keep it as low as possible and this spring set up is really flexy, ride nice and keeps me low....
