Huh? I thought the truggy diffs had spiraling teeth on the pinion & ring gear, like this:
http://www3.towerhobbies.com/cgi-bin...&I=LXJBM3&P=SM
http://www2.towerhobbies.com/cgi-bin...&I=LXJBM4&P=SM
and the buggy diffs have normal teeth, as it were:
http://www3.towerhobbies.com/cgi-bin...&I=LXLGU1&P=SM
http://www3.towerhobbies.com/cgi-bin...&I=LXLGT9&P=SM
EDIT: Images dont work, but links to parts do.
EDIT: I type too slow...