[Mike C]

Not much has changed on leaf spring parts since 2015.

4x4 and Longhorn trucks have 2 1/2" wide springs. The C10/C20 have 2 1/4" springs so you can use same kit for the flip or for the shackles.

Obviously, 3/4 ton springs are different arch and thickness will get you different amount of drop. And you get what you get. 7 1/4" on my truck with the HD spring.

If you want more than a shackle and less than a flip you must buy springs. You can buy them in various drops. ECE makes great products. Springs are expensive but will get you whatever drop you desire. But remember that the drop springs are made for 1/2 ton trucks so they may drop your 3/4 ton more. Or not...

Cheapest is flip it, set the pinion angle, weld on new perches you can make from 2 1/4" square tube. I used 4 stock length front shocks all the way around but drilled the second hole in the stock leaf shock upper mount and made the shock more vertical.