Originally Posted by cornerspeed92
Man these 1LE'S just look like they belong on the track,nice pics.I obviously know what lb ft is what it +90 degrees?
It appears that GM is using "Torque to Yield" bolts to hold the calipers. You torque the bolt to 30 lb ft and then tighten the bolt an additional 90 degrees to set the proper clamping force. This will actually cause the bolt to stretch.
The proper way to do this is to use a "torque angle gauge or indicator". They can be bought at most auto parts stores for as little as $10.
When you do this the bolts are not reusable and the GM service manual states that. That's why I said in my first post you will need four new bolts. Any time you remove your calipers you'll have to replace the bolts. I ordered 4 extra the other day so I would have them if I needed to pull the calipers at the track for some reason.