The pinion nut does not have a torque spec. as in how tight the nut is. The amount of torque is measured in bearing preload. You will need a "torque to rotate" torque wrench. If you are using new bearings the torque spec. is 15-25 in. lbs. If you are using your old bearings the torque spec. is 10-20 in. lbs to rotate. To measure this you will need to tighten the nut in small increments then use the torque to rotate wrench to turn the pinion without the carrier/ ring gear installed. Repeat until desired torque is reached.
Tighten the spindle nut to 149 ft-lbs to seat the bearing then
. rotate the axle 5 to 10 times to seat the hub bearing, then
tighten the spindle nut to a final torque of 263 ft-lbs I would just use a good impact gun to get it there.
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