69 C10 5/7 drop

[bradc2009]

Ok guys, I've done my research and I cant figure out the rear suspension. I know i will need 2" drop spindles and 3" lowering springs in the front and out back i know i need 5" lowering spring and most likely a c-notch but i cant figure out how to get the other 2". I keep hearing about flip kits but from what I understand those are for leaf spring trucks, I have trailing arms and coil springs unless I'm missing something. Any info you guys can give me would be greatly appreciated. Thanks.