On the main forum page, the names at the far right of the sub forum are the moderators
Palf70Step is the moderator of the 88-98 GMT400 section
http://67-72chevytrucks.com/vboard/member.php?u=5259
And old Rusty C10 is the moderator of the 73-87/73-91 blazer/suburban section
http://67-72chevytrucks.com/vboard/member.php?u=5988