need lowering info/help

[6ty8]

i have a 68 c10 and i want to lower it all low as possible but i dont want air bags air ride or anything like that. I know there is kits out there like a 5/7 drop but i want to go even lower if its even possible. This is my first truck my first build so i dont really know it all and i would appreciate any help. Ive heard about cutting the crossmember down some inches so it raises it but does that only apply if your gonna bag it?

I have front suspension off a 76 c10 and the rear is stock from my 68. So can anyone help he out push me in the right direction...thanks.