Hey I have never made it to the YARD yet. But The 86-88 Isuzu troopers have the same pinout as our Runners. and their springs are quite a bit stouter. you never see those troopers squatin like that, and they are heavier.
I am gonna buy 2 of those here soon and that should remedy the drag
our runners do.
And if you wanna keep it stock for now that would be much more comfortable than the add-a-leafs. U-pull-it here in Oregon wants 15 a spring, which is worth it to me.