1978 Bronco Block lift problems..

I just bought a 1978 Bronco and I have notice that my blocks in my lift are rocking back and forth on the spring mount.... I was wondering if it is anything I should be worried about. Like can the blocks slip off the spring mounts and make a mess of the rear end. Its a 6 inch block lift like this one http://broncograveyard.com/bronco/i-23365-rear-lift-blocks-5-pair.html

Yes it is a problem. Mine rocked till it started turning side ways to the point it all most came out. I then removed them and replaced them with Hefty Fab works shackle flip kit. It leveled my 78 bronco up and no more blocks to worry about.

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