It's 140 not 100
Quote from said thread "GM vehicles that have the torque spec of 100 ftlbs / 140 N.m are cars that use the SMALLER 12mm x1.50 stud. This includes the Corvette
The 2010-11 Camaro is the only GM car that uses the 14mm x 1.50 stud. All other GM cars use the smaller 12mm x 1.5 stud."
http://www.camaro5.com/forums/showthread.php?t=33139