What i did was take Chevy 63's out of a 90's Silverado and left my longest spring attached then cut the second longest spring from the 63s to go under my longest (i cut it almost the same length as my longest so it would be fully supported as it was the worst off) then put back the second longest from my pack and finally cut the third longest leaf from the 63s down to go under that. And i left my overload out. Really cheap and easy to do just remember to measure twice before you cut the springs.

But to answer your question, nothing from full size will directly bolt in. Luckily our springs are the same width as full size Chevys so that gives plenty of options for bastard pacs.

 

it cost me 640 bucks for everything new, both main leafs, all new body leafs, new shackles, new ubolts, and new center bolts.