ADDCO rear sway bar problems

WTH am I doing wrong?:banghead::banghead::banghead:

The locking blocks they include do not even remotely fit my application (8.25 axle). There is no way they will bottom out on the axle tube like the instructions say...the pic below is the best I can do. Is this actually correct? If so, then the end links are 1-1.5" too short.

My buddy had an old install kit from a past car he had, and I chopped up those blocks thinking I could get them shorter to rest on the tube. But when I tired that, the block no longer locked in to the u-bolts, and they could twist even when very tight.