Originally Posted by Jim Frahm

I have the same problem with mine. The hinge pins are 2.4mm or .096". All the play comes from the castor block inserts and not the lower arm. Here's what I did to fix it. I installed the hinge pin in the castor block (with inserts installed of course) and then put a drop of thin CA in the castor block followed quickly by CA kicker. I did this on both sides of the castor block inserts. Then remove the pin and install in the arm. Almost zero play now. One other note, each hinge pin has a small burr at each end, you need to remove the burr to prevent you from removing material from the hinge pin hole each time to install or remove the pin.

Hope this helps,

Jim