I was wondering if anybody had done the 4" shackle flip and put on revolver shackles and what you thought about it? How is the ride quality on and off road? I have also heard that the shackle flip is junk because it causes the axle to move freely.....i doubted that this was true if so many people had them. Also, i was wondering what else i need to buy to add 4" to the front? is all i need just steering arm, springs, and brake lines? 85 k5 blazer with an old 305....must have more power!