I'll add here that not too long ago, I replaced the original headset on my 1995 Trek 730 Multitrack.

The original was a Tange-Seiki Passage, which has an even smaller stack height than the Levin CDS. The original setup had one extra washer in the stack, though, and leaving that out was enough to get the Levin CDS to work.

I'll have to wait to see how it holds up over the long run, but my impression of the Levin CDS was very positive. Felt like quality stuff; looks great on the bike; reasonably priced.