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For 34 the Spec. for the pinion nut adjustment is 12 to 17 inch/pounds of torque to turn the pinion. Ring pinion tooth back lash is .006-.010" There is no torque Spec. for the bolts that connect the torque tube to the differential center housing or the axle housings to the center housing, or the ring gear attachment. Mfg. Spec. for a soft grade 5 bolt 3/8-24 new is 21 foot/pounds (without lubricant). I would not torque old Ford bolts to that Spec.