K5 blazer

Hey, I'm new to this forum, and i have an 85 k5 blazer with the ORD shackel flip kit on it. I have 4''x 56'' springs in the rear with the 4'' shackel flip. My problem is that since my springs are longer than the stock ones i had to switch sides with the shackel flip kit to get them to work, but i am still having problems with the shackels inverting when i go off road and flex the springs out. has anyone else had this problem?