thought i had them made but the interlocking half circle is important to keep them from moving in the frame holes.
I think that A fellow could improvise on that to overcome that problem, but takes time to make. one could turn polyurethane bushings with a lip and then cut 1/2 the lip off. 1 top and bottom. would would just need access to a wood lathe to turn the p/u bushings. i have a machinist lathe and 2 good wood lathes, so I don't look at that as a problem. just leave room for them to move inside the insulator. you may want to make the hole a little larger in your insulator to take the bushing
ron
