HELP!!! with rear drop...heated coils...

[hardwaycooke]

I bought my truck with the front and rear coils already heated. I have a 71 chevy. It sits really nice. about an inch above the tires. I just bought a 31" tire for the back, 15" rims. My current tires are about 28" tire diameter. I need to add a couple inches to my rear lift to fit my tires. I want a nice rake. I was told that drop spindles would actually raise MY truck since the coils have been heated.

My question is which drop coils should I get...2,4,6??? I dont know how much room there is with stock coils so I cant really decide what I need to do... Thanks for your help.

BTW...I'm not considering returning the tires for a smaller diameter so I want to work with what I have...and I think I should get new coils anyway...these are slammed!!! They have shims between the coils.