|I rebuilt the hubs and repacked it with some fresh grease|
|Shimano 600EX high flange Uniglide hub. Date code reads EG and the drive side bearing cover reads Shimano 6D|
The only problem with the older Uniglide hubs is that the freewheel bodies are not interchangeable like the newer style ones and Uniglide cassettes don't have any shift ramps on the sprockets so you end up with poor shifting under load. Modern Shimano cassettes won't go on these old Uniglide freehubs because they introduced a wide spline to index the sprockets together (for alignment of shifting ramps) so they only solution to adapt them is to file off the tab on the sprocket.
|You can see the wider tab directly to the right of the arrow in the pic|
|This is the sprocket with the tab filed off. Fits nicely on the old Uniglide freehub now.|
|The cassette on the hub with the track sprocket on. Slight problem.|
|Not much thread left for the locking/small sprocket|
|After a quick cut with the cutting disk, grinding and then sanding...|
|Voila! 3mm spacing|
|Whilst not sitting entirely flush, it's sitting with the correct 3mm spacing now. I might try using thinner 9 speed spacers (2.5mm) to try to get the cassette stack height lower so the lockring will sit properly flush with the freehub body.|
I've given it a test ride and it works like a charm, I'm still a bit paranoid about putting too much force on the top sprocket because the thread might give seeing as it's only engaged on three of them. Now with a cassette hub I have much better choice of gearing and I can more easily customise it to what I want.