Those Rancho springs are shorter than the typical bolt in toyota spring. I would look at putting toyota rears in the front. Find so Toy rears and use the top 2 springs and ditch your top 2. That should give you a little lift and great flex. TG spring are soft and floppy on the road. They twist all over the place in the shackle, that and other reasons are why they dont last as long.
Had to help my buddy add a leaf and move is hanger in his 9month old hd tg springs today... he only had three wheeling trips on it and it saggs to the driver not to mention its his second set in less then 3yrs...
