OTC 1939 Truck Wheel Bearing Locknut Socket, 5-1/4", 6-Point Shop by Category > Measurement>Calipers Inspect the seal to ensure

Inspect the seal to ensure that it is properly seated and flush with the engine block surface

4 3/4" max

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OTC 1939 Truck Wheel Bearing Locknut Socket, 5-1/4", 6-Point Shop by Category > Measurement>Calipers Inspect the seal to ensureOTC Tools OTC 1939 Truck Wheel Bearing Locknut Socket, 5 1 4", 6 Point. These sockets have a 3 4" square drive opening, permitting the use of an extension and torque wrench to tighten the locknut as required. Locknut removal and installation is simple, even when wide rim wheels are involved, since a long extension may be attached to the socket to provide the necessary clearance. Sockets are made of high strength steel; openings resist "rounding out."