I noticed today that my sheave that is only in action when I am using my 30 ton load block and rigged for a 3 part line, is slopped out, bushing (bearing?) apparently gone. This is a recent issue near as I can tell. Question is: is it worth just rebushing it, or better in the long run to just get a new sheave (NOT through National, I learned my lesson on the parts pricing on my outrigger pad). I know there are gauges for various wire rope sized that will tell you if the sheave groove is worn too much, this one seems OK, not widened out. Kind of a puzzler why the bushing is shot with the very little use I at least have given it. Greased enough, as much as my windshield could stand. 1" bore I think, guess I'll have to pull it to order the correct parts, then put it back together while waiting for them to arrive. My National book has a parts # for just the bushing, and I just checked, $69.00 for the bronze bushing, seems high, as expected, but it is in stock. Buying a complete new sheave from this outfit https://www.isheaves.com/ and putting it on my single line side where I'd use it every day, and putting the one there now on the 3 part line side, is probably the way I'll go.