Bearing Nut (Castle Nut) Torque

[SMAJ]

:angel: Does anyone know the torque specs for the bearing nut on the 7000 lb axles? I pulled the wheels on our 09, 3670RL Bighorn to have them balanced, discovered a bad stud, so I had to pull the brake hub.

 

[cookie]

Here ya go.

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Bearing Adjustment/Hub Replacement​

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For adjusting bearings or replacement of removed hub, follow procedures below:
1. Place hub, bearing, washers and castle nut back on axle spindle in the
reverse order from which they were removed. Castle nut should be torqued
to 50 ft.-lb. Hub will rotate during this process.
2. Loosen castle nut to back off the torque.
3. Tighten castle nut finger tight until snug.
4. Insert cotter pin (or locking tang if equipped with Super Lube). If cotter pin
or tang does not line up with hole, back castle nut up slightly until pin or
tang can be inserted.
5. Bend cotter pin over to lock nut in place (or locking tang in the case of
Super Lube). Nut should be free to move with only the cotter pin keeping it
in place.

Peace
Dave​

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[porthole]

Although torquing is ideal, I just crank down on the nut then back off. It is important to spin the rotor or drum while you are torquing it down, especially if you replaced the bearings. Spinning the hub while torquing insures the bearings seat correctly.