A 'capable' machinest could fabricate 2 pairs of split-clamps from 6061-aluminum in a few hours, and while doing this, incorporate the 5/16" thick shims that partially corrects bump-steer in most Panteras. When done, the pair of aluminum clamps will be 4 lbs lighter and look nicer, according to my notes from 2003 when I did this. If the replacement rack was cut too small in OD, that's also easily correctible when you make new clamps. This eliminates all the fussy bits you added, that you need to manipulate when R & R-ing the rack in the future.
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