I was going to put a 6 inch BDS system on my 75 K5. I will be running a locked or spooled 14 bolt and 8 lug 44, open in the front- at least until I can find a D60 for the front. Tires are going to be 35x14.50 Boggers. Started crunching the numbers and the bank account is coming up somewhat short. So, I am thinking about running six inch BDS up front and doing an ORD 4 inch shakel flip with two inch blocks in the rear to get the six inches in the back- just until I can build up the bank account to buy springs to do this right. Couple questions- I have found varying statements on here about rather the shackle flip and two inchs in either springs or blocks makes a truck sit level. From those who have done it- should I go with three inch blocks instead of two? What is recommended in this case? I was also told today that my current two inch lift front springs could be used on the back. The K5 is an hour away so I can't measure- is this correct? Newbie to this - can you tell? Thanks for the advice/help.