If the 1/2" bolts have three tick marks on the heads, they are Grade 5 bolts, 75 ft lbs, and if there are five tick marks on the heads, they are Grade 8 bolts, 107 ft lbs. These torques are for plain bolts completely dry, no lubricant on the threads. If the nuts are flange style, apply torque to the bolt, not the nut.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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