rear shackle flip?

[rankroddin250]

hey guys about a month ago I installed a 4 inch rough country lift on my 96 f250 psd. Since then the front rides wonderfully compaired to my shot front springs that where riding on the bumpstops! but with the 3 inch blocks in the rear it still rides like a tank in the back end (soft in front hard in back) any ways I was wondering if any one has ever done a shackle flip in the rear of their OBS and if there was any problems with axle wrap and so on? I would like to soften my suspension a little and get the rear ride height up enough to take the block out... the shackle flip worked great on my buddies f150 you can jump it 20 feet and it feels like its landing on pillows... NO I AM NOT PLANNING ON JUMPING THE PSD!!!!! Im just tired of going to the chiropracter every time i hit a pothole let alone trying to take it up in the mountains