Thanks. I figured 34 or 36 for a GM. The after market ones that I saw were 34, but GM had some odd stock numbers. I just did one for my sister last year and found her torque value to be something like 250 ft/lbs. :/ The highest my torque wrench goes is 150, so then I'm just guessing after that.
Also, thanks again for the tip on the spare tire. I'd have popped out the center cap of the rim, and possibly broke it in the process.