i have an 84 k5. i put a 6in superlift on it and am running 35x1500 tsls. the lift has been on for about 2 months and the front is alot higher than the rear. it has 6in blocks in the back. are my springs wore out that bad? iam going to get a set of rear 6in springs with my tax money in order to get rid of the blocks. what would be better,,,,,,6in springs,,,or the shackle flip with some 2in lift springs?