Best Drop with coil suspension

[capriceutah]

72 C10 Half Ton LWB with coils all around and front factory disk brakes.

It seems most trucks are a leaf rear. I was just wondering what the lowest I could go and the best way to go to do 7"/ 5 " drop or lower. I have searched and all the posts I saw referred to a leaf/coil combo when it came to lowering.

Let me premise this by saying this site kicks major ass for the info(searching for weeks before I posted, probably doing hei/tranny swap this weekend) and I'm looking forward to building my C10.

Thanks in Advance,
Chris