Forget pinion nut torque specs, what you want to look for is bearing preload, preload keeps the bearings from slopping around the housing.
Typical new bearing preload is 20-30 INCH pounds, this is the amount of torque needed to rotate the pinion as measured with a (duh) inch pound tq wrench, beam type... period
Used bearings preload typically 10-20 in lbs
When you think of the rear diff working, imagine the twisting (torque) forces acting upon everything back there... the tranny,trans case and diff MULTIPLY the tq going to the diff, this is why there is preload on both pinion and carrier bearings, now take these forces and then twist a 33,35,37,40" or whatever size tire. MASSIVE forces at work here, makes you wonder how the skinny rear axles don't snap more often.
08 2 door (yes they made them) 3.5 RK lift, 35s lunchbox locked 30 front 44 LSD rear
Ocala Jeep Club CERT member. Nation's 1st jeep CERT team
Proud to be deplorable
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