http://tiiite.b16a.com/LSDcheck!.htm
about halfway down the page it says this
I've never seen this with my own eyes before, but a fellow hybrider from another country sent me this pic. It's an LSD stamp on a B-series Cable type tranny. (About 90% of the time, the Y1 cable tranny's are the LSD equipped ones) He said his motor came from Japan 'as-is'. The stamp is on the topside of the tranny casing, right under where the Vtec solenoid area.
maybe Im reading it wrong but to me it comes off as 90% have LSDs
http://www.automotiveforums.com/vbulletin/t15933.html is the link on the fourms look under Transmission B-series Gear Ratios
once you get to the b series click on the LSD link on that page
and it takes you to the first one I got the info from
if I go with the US Teg spec trans are they cable or hydro? never thought about that Hmmmmm that could be a plus side
Jeff