Broke internals from two levers too in last winter :eekster:
Visited then LBS, who`s local re-seller of DT Swiss products - he asked from DT are those possible to get as levers only and after few weeks, he got those. I´ve now few additional ones ... So if there are any local DT Swiss- dealers, contact them - they can probably give you levers from complete kits before getting spares?
edit: just looked somewhere (maybe it was bikerumours.com..) that DT will make changes to levers for 2011 - new levers seems to be more similar compared to Maxle Lite- levers and hopefully those small internal teeth are more harder too ...