More help from some dropmember guys..please

[smartass12]

I know this might be jumping to far ahead but if someone that is running the same set up as me might be able to help. So i am running Porterbuilt dropmember (will lay frame) and run about 5" ride height. Two piece drive shaft and a LS1 Engine with 4L60e Auto Transmission. I don't want to purchase the engine yet (money/warranty issues) but i want to continue on the rear end.. ie.. weld on bag mounts and such. In doing so i need the pinion angle of the rear diff and i assume somebody would know if they are running the same set up..If anybody can help me out that would be great..Fyi...my truck is a 67 c10 stepside...thanks again if any help is possible..