Sure I'll answer any ?'s you've got.
For rear I ran late 80's Ford 1/2 ton springs. They are 56"ers so not as long as common chevy 63's but flexed very well. I went with older springs so they would only be 2.5" wide as opposed to later model ford which is 3" wide, for which I would have had to redo the perches etc.
For front springs I ran 4"BDS lift springs for a YJ. They gave me about 5.5" of lift and flexed well.
