Originally Posted by
old's'cool
If your hub takes a freewheel
this will work fine with Shimano 6sp indexing.
If you have a cassette, it's an easy matter to change out a few sprockets. In that case, I would grab
this cassette and adapt some of the larger sprockets to your freehub. No rocket science needed.
If he has a UNIGLIDE cassette he'll need to grind off part of the large tab on each cog from that Hyperglide cassette in order to fit the cog to the Uniglide freehub body.
This is why I asked the OP to post an image of his rear wheel that shows the cogs from the drive side. Then we'll know what he's dealing with, cassette or freewheel.
Cheers