Section 05-03C: Wheel Hubs and Bearings, Front Wheels, 4-Wheel Drive
1996 F-150, F-250, F-350, and Bronco Workshop Manual
REMOVAL AND INSTALLATION

Locking Hubs, Automatic

 

Automatic Locking Hub, F-150 and Bronco





ItemPart NumberDescription
13A329Halfshaft
23C132Rolling Diaphragm Seal (RDS), Axle
33299Integral Spacer Needle Bearing Seal
43123Bearing, Caged Needle
53105Front Wheel Spindle
63254Spindle Rolling Diaphragm Seal
71190Wheel Hub Grease Seal
84221Inner Wheel Bearing (with Bearing Cup — 4222)
91102Front Disc Brake Hub and Rotor
104221Outer Wheel Bearing (with Bearing Cup — 4222)
113B549Wheel Retainer Key
12Steel Thrust Washer (Part of 3B458)
13Plastic Thrust Washer (Part of 3B458)
14Splined Thrust Washer (Part of 3B458)
151K104Capscrew
161K104Cap
17Lock Ring (Part of 1K106)
181K105Hub Body
193B457C-Ring
20Cam Assembly (Part of 1K105)
21Wheel Retainer (Nut) (Part of 1K105)
ATighten to 4-6 Nm (35-53 Lb-In)
BWhile Rotating Front Disc Brake Hub and Rotor, Tighten to 68 Nm (50 Lb-Ft) to Seat Wheel Bearings. Back Nut Off 90 Degrees (1/4 Turn). Tighten to 1.8 Nm (16 Lb-In)


Automatic Locking Hub, F-250, F-350





ItemPart NumberDescription
13A329Halfshaft
23C132Rolling Diaphragm Seal (RDS), Axle
33299Integral Spacer Needle Bearing Seal
43123Bearing, Caged Needle
53105Front Wheel Spindle
61190Wheel Hub Grease Seal
74221Inner Wheel Bearing (with Bearing Cup — 4222)
81102Front Disc Brake Hub and Rotor
94221Outer Wheel Bearing (Bearing Cup — 4222)
103B549Wheel Retainer Key
11Steel Thrust Washer (Part of 3B458)
12Splined Thrust Washer (Part of 3B458)
13Lock Ring (Part of 1K106)
141K104Capscrew
151K104Cap
161K105Hub Body
173B457Snap Ring
18Plastic Thrust Washer (Part of 3B458)
19Cam Assembly (Part of 1K105)
20Wheel Retainer (Nut) (Part of 1K105)
ATighten to 4-6 Nm (35-53 Lb-In)
BWhile Rotating Front Disc Brake Hub and Rotor, Tighten to 68 Nm (50 Lb-Ft) to Seat Wheel Bearings. Back Nut Off 90 Degrees (1/4 Turn). Tighten to 1.8 Nm (16 Lb-In)
 

Removal

 CAUTION: Do not drop hub components during removal and installation.

  1. Separate cap from body assembly by removing the three capscrews, using Torx® bit TX25 or equivalent, from the cap.

  1. Remove cap.

  1. Remove the lock ring seated in the groove of the front disc brake hub and rotor (1102).

  1. Remove the body assembly from the front disc brake hub and rotor.



    Automatic Locking Hub, Disassembled View, Typical





    ItemPart NumberDescription
    11K104Cap
    21K105Hub Body
    33B457Snap Ring
    4Plastic Thrust Washer (Part of 3B458)
    5Cam Assembly (Part of 1K105)
    6Wheel Retainer (Nut) (Part of 1K105)
    73B549Wheel Retainer Key
    8Steel Thrust Washer (Part of 3B458)
    9Splined Thrust Washer (Part of 3B458)
    10Lock Ring (Part of 1K106)
    111K104Capscrews (3)
    AWhile Rotating Front Disc Brake Hub and Rotor, Tighten Wheel Retainer (Nut) to 68 Nm (50 Lb-Ft) to Seat Wheel Bearings. Back Nut Off 90 Degrees (1/4 Turn). Tighten to 1.8 Nm (16 Lb-In).
    BTighten to 4-6 Nm (35-53 Lb-In)
  1. Remove C-washer or snap ring from stub shaft groove.

  1. Remove spacers (three thrust washers) from shaft.

  1. Remove cam assembly. Pull to remove.

  1. If front disc brake hub and rotor and front wheel spindle (3105) are to be removed, refer to Wheel Grease Seal and Bearing, Front Replacement and Repacking in the Disassembly and Assembly portion of this section.

 

Installation

  1. Align the fixed cam retaining key on the cam assembly (garter spring inboard) with the keyway on the spindle. Firmly press the cam assembly on the wheel retainer nut.

  1.  CAUTION: Improper sequence of three-piece thrust washers will result in excessive wear of assembly.

    Install three-piece thrust washer set (first metal, second plastic, third splined) and retainer lock ring on C-clip. It may be necessary to push the axle outboard from backside of knuckle. Be sure retaining ring is seated in groove properly.

  1.  CAUTION: Rotate moving cam stop (use any one of three) to the one o'clock position in relationship to the fixed cam retaining key.

     CAUTION: Do not force body assembly into front disc brake hub on rotor if body assembly will not fit. Recheck alignment of all components.

    NOTE: The hubs should not be packed with grease. Too much grease will damage the hubs and prevent proper operation.

    Install body assembly into vehicle front disc brake hub and rotor by lining up the three legs outside the hublock body with the three pockets in the cam assembly.

  1. Make sure body assembly is in far enough to see groove in rotor tube. Install large lock ring into groove of hub. Be sure lock ring is correctly seated.

  1. Install cap to body assembly. Install three capscrews and tighten to 4-6 Nm (35-53 lb-in).