The worm-blocks of both axes...
They are identical to one another, and, again, therefore interchangeable. But I kept them separated nonetheless. I did not end up placing the RA worm-block onto the DEC-axis, and vice-versa. Although, I do suspect that there's a huge container of these blocks on the factory floor, and to be dipped into when needed for either axis.
One thing I noticed about these assemblies, prior to disassembling, is that they contain no washers, zero, zippo, nada, none that I could see.
That's a terrible shame, as I love to fill my mounts with all manner of bronze washers and needle-thrust and/or ball-type bearings, whether they need them or not. No, that's not true, of course, but I do place them where I think that they will do at least some good, with the performance, perhaps, better than before, but only after having inspected the areas, in relation to one another even, first.
A worm-block, exploded...
Nope, not a single washer to be seen.
That nut required a 17mm socket; gads. I also made a special tool, like the others, but extra special, and to adjust the threaded tensioning-sleeve...
But for these worm-blocks, I'm not certain if it would do them any good, but I did it anyway...
...two for each worm-block. I took care of both at the same time...
The washers lay within the outer, slightly taller rims of the mini sealed-bearings...
Can't have those steel bearings rubbing directly against the brass worm. I made buffers for them.