Managed to get the freewheel off the wheel on the Miyata GT600. It seemed like it was rolling a bit ragged so I decided to repack the hubs. After removing the axle and bearings I found that the cones for the hubs were a bit worse for wear. One had some nicks on the outer rim (not directly on a bearing surface) but the other had a gouge on the bearing surface. I thought it would be a simple matter to replace them but I now see that cones come in a variety of shapes and sizes. The hub is made by Sansin, the axle is 141mm long and the axle thread I *belive* is 3/8 x 26 (measured using my $1.99 calipers). I'm not really sure what to be looking/asking for while searching for cones. Is it possible to find replacement cones through regular retail channels? Thanks for any insights you can provide.

I'm reasonably sure that Sansin is the same company as Sunshine. I'm not certain how interchangeable cones are though. I'll check my stash and let you know if I have a spare rear.

You might have more responses if you post this in the iso/wtb thread.

Thanks for the offer. I'm gonna check around tomorrow to see if I the local bike dump has something that would work.