The rear axle nut size for a 2006 Ford Explorer is 22 mm. The axle nut is what holds the hub to the axle. It is the hub on the disc behind the wheel that the wheel bolts onto. It is recommended that if You have to remove an axle nut, You should discard it and replace it with a brand-new one. Be sure while using a torque wrench and socket, tighten the axle nut according to the manufacturer's recommendations which is 180 ft/lbs torque. Vibration and movement of a loose axle nut can cause damage to the wheel bearing. Alternately, if that nut is too tight, that also can cause damage to the wheel bearing.
Mike
October 29, 2021
The rear spindle nut is a 36mm
Lynette D
July 16, 2020
The 2006 ford explorer rear axle nut size is spindle nut m22-1.5 Hex size 32mm
Gary
March 25, 2024
It is absolutely not 32 mm. Source: The 36 mm in my hand going over the axle nut perfectly.
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