Mechanical Trim Indicator Clamps
 

I know a lot of people have been looking for the clamps to hold the mechanical trim indicators to the hydraulic ram and after looking, contacting Joanne, and trying a few different ones I finally found a good replacement all stainless steel from McMaster-Carr part #5204K12 it is a 2-5/16 to 2-5/8 inch clamp that is almost identical to the original.

Hope this helps!!