Alex, here's the pics I made for the rear shocks.
I started by cutting off the new relocation tabs from the DJM shock relocation brackets. Then I made the new tabs with several different hole locations for different shock lengths. Once those were made, I mocked them up to the bracket with them mounted to the Tahoe and tacked welded them in place. I chose to weld the plates on the outsides of the DJM bracket to allow for side to side movement of the shock when the axle gets crossed up in relation to the body, like driving at an angle over a steep driveway approach etc.. This required making some spacers to go between the new shock bracket hole and the shock itself.
I could have welded the plates on the inside of the DJM bracket and they would have been a perfect width for the shock eyelet hole. But, the bracket would have been practically touching the shock body and would have put a strain against the shock and possibly prevented the axle from moving freely at extreme angles.
So here is the finished results after painting them today. I now have an adjustment range from stock location to, 2", 3" 4" and 5". As the Bilstiens are now, mounted at the bottom location and suspension fully dropped (chassis supported on jackstands), the Belltech springs will not fall out and I have up to 5" of shock compression before the shock bottoms. Way more than needed but at least I know these shocks will last, even if I go quite a bit lower.
Mike