Originally Posted by
duropero
Hello, i am new here, but solving "old" problems
Can you (doncha) please specify exact model of the new hub, from which you have taken that freehub body? Have the same "problem" - shimano 600Hub (FH6208) and i am thinking to use freehub from Altus or Acera hub... (7 cogs would be enough..)
Nope, unfortunately for you, the mid-'80s FH-6208 600EX 7-spd Uniglide hub is the last of the 2nd-generation screw-on freehub-bodies. It cannot take the 3rd-generation bolt-on bodies that uses the 10mm hollow bolt.
Not very easy, if even possible to find a 7-spd Hyperglide freehub-body that uses this large screw-on thread. They did exist, but in very limited numbers and I doubt anyone carries it today. Your best bet to get 7-spd Hyperglide is to get a 7-spd Hyperglide cassette and grind off the wider spline so that it'll slide onto your Uniglide freehub. Then re-use the Uniglide threaded top-cog to lock the cassette in place.