Hummer H3 Rear 2" Block Kit

GROUND FORCE is making a block kit that lowers the rear by 2", anybody experienced the kit, just can't find any info on this.
The adjustment of the torsion bar is not a solution for me, since I do not want to raise the front but lower the rear.
The kit includes, blocks, spring plates and hardware.
Any response would be greatly appreciated.
Thanks.

http://www.gstyle4u.com/.sc/ms/dd/H3%20Performance/931/GROUND%20FORCE%20LOWERING%20KIT%20^2F%2006-07%20HUMMER%20H3
 
 
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