Ram B1500, B2500, B3500, 1999-2003

Wheel Bearings

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Adjustment



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Tighten the wheel bearing nut to 30-40 ft. lbs. (41-54 Nm) while turning the rotor.
  4.  
  5. Loosen the wheel bearing adjusting nut completely.
  6.  
  7. Tighten the nut finger-tight.
  8.  
  9. Check the wheel bearing end-play. The specification is 0.001-0.003 inch (0.025-0.076mm).
  10.  
  11. Install the nut lock and cotter pin.
  12.  

These are unitized hub/bearing assemblies. No adjustment is possible.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Tighten the wheel bearing nut to 30-40 ft. lbs. (41-54 Nm) while turning the rotor.
  4.  
  5. Loosen the wheel bearing adjusting nut completely.
  6.  
  7. Tighten the nut finger-tight.
  8.  
  9. Check the wheel bearing end-play. The specification is 0.001-0.003 inch (0.025-0.076mm).
  10.  
  11. Install the nut lock and cotter pin.
  12.  

Removal & Installation




NOTE
Bearing and races must be replaced as a set if worn or damaged.

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the wheel and tire assembly.
  4.  
  5. Remove disc brake caliper.
  6.  
  7. Remove the dust cap, cotter pin, nut lock, nut and washer from spindle.
  8.  
  9. Carefully slide the hub/rotor from spindle.
    WARNING
    Be careful to prevent inner wheel bearing and seal from contacting spindle threads during removal,

  10.  
  11. Remove the seal and inner wheel bearing from the hub/rotor.
  12.  
  13. Remove the inner and outer bearing cups from hub/rotor with a pin punch.

    Click image to see an enlarged view

    Fig. Cross-sectional view of the hub and bearing

  14.  

To install:

  1. Install the new bearing cups with an appropriate size driver tool.
  2.  
  3. Apply a coating of MOPAR® or equivalent Wheel Bearing Grease to inner surface area of hub.
  4.  
  5. Clean and grease inner and outer wheel bearings.
  6.  
  7. Install inner wheel bearing and new bearing seal.
  8.  
  9. Inspect bearing and seal contact surfaces on spindle for burrs and roughness.
  10.  
  11. Remove all rough contact surfaces from spindle. Apply a coating of lubricant
    WARNING
    Be careful to prevent inner wheel bearing and seal from contacting spindle threads during installation.

  12.  
  13. Carefully slide the hub/rotor onto the spindle. Install outer wheel bearing, washer and retaining nut.
  14.  
  15. Tighten the nut to 30-40 ft. lbs. (41-54 Nm) to preload bearing while rotating the hub/rotor. Stop hub/rotor and loosen nut to completely release bearing preload torque. Tighten the nut finger-tight and install the nut lock. Install a new cotter pin
    NOTE
    The end play should be 0.001-0.003 in. (0.25-0.076mm).

  16.  
  17. Clean the dust cap and apply a coating lubricant to the internal surface. Do not fill the dust cap with lubricant. Install the cap.
  18.  
  19. Install disc brake caliper.
  20.  
  21. Install the wheel and tire assembly and lower the vehicle.
  22.  

Before handling the bearings, there are a few things that you should remember to do and NOT to do.

Remember to DO the following:



Remove all outside dirt from the housing before exposing the bearing.
 
Treat a used bearing as gently as you would a new one.
 
Work with clean tools in clean surroundings.
 
Use clean, dry canvas gloves, or at least clean, dry hands.
 
Clean solvents and flushing fluids are a must.
 
Use clean paper when laying out the bearings to dry.
 
Protect disassembled bearings from rust and dirt. Cover them up.
 
Use clean rags to wipe bearings.
 
Keep the bearings in oil-proof paper when they are to be stored or are not in use.
 
Clean the inside of the housing before replacing the bearing.
 

Do NOT do the following:



Don't work in dirty surroundings.
 
Don't use dirty, chipped or damaged tools.
 
Try not to work on wooden benches or use wooden mallets.
 
Don't handle bearings with dirty or moist hands.
 
Do NOT use gasoline for cleaning; use a safe solvent.
 
Do NOT spin-dry bearings with compressed air. They will likely be damaged.
 
Do NOT spin dirty bearings.
 
Avoid using cotton, waste, or dirty cloths to wipe bearings.
 
Try not to scratch or nick bearing surfaces.
 
Do NOT allow the bearing to come in contact with dirt or rust at any time.
 


NOTE
For information on wheel bearing removal and installation, refer to Section 7 ("Drive Train").

  1. Remove the wheel bearing.
  2.  
  3. Clean all parts in a non-flammable solvent and let them air dry.
  4.  


NOTE
Only use lint-free rags to dry the bearings. NEVER spin-dry a bearing with compressed air, as this will damage the rollers.

  1. Check for excessive wear and damage. Replace the bearing as necessary.
  2.  


NOTE
Packing wheel bearings with grease is best accomplished by using a wheel bearing packer (available at most automotive parts stores).



Click image to see an enlarged view

Fig. Packing the wheel bearing by hand



Click image to see an enlarged view

Fig. Exploded view of a 2WD front wheel and bearing assembly

  1. If a wheel bearing packer is not available, the bearings may be packed by hand.
    1. Place a "healthy" glob of grease in the palm of one hand.
    2.  
    3. Force the edge of the bearing into the grease so that the grease fills the space between the rollers and the bearing cage.
    4.  
    5. Keep rotating the bearing while continuing to push the grease through.
    6.  
    7. Continue until the grease is forced out the other side of the bearing.
    8.  

  2.  
  3. Place the packed bearing on a clean surface and cover it until it is time for installation.
  4.  
  5. Install the wheel bearing.
  6.  



Click image to see an enlarged view

Fig. Some bearings must be driven out of the rotor

2-Wheel Drive
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Brake caliper
     
    Grease cap
     
    Cotter pin
     
    Adjusting nut
     
    Washer
     
    Outer bearing
     
    Brake rotor and hub assembly
     
    Grease seal
     
    Inner bearing
     

  4.  

To install:

  1. Install or connect the following:

    Inner bearing
     
    Grease seal
     
    Brake rotor and hub assembly
     
    Outer bearing
     
    Washer
     
    Adjusting nut. Adjust the bearings.
     
    Cotter pin
     
    Grease cap
     
    Brake caliper
     
    Front wheel
     

  2.  

Coil Spring Suspension
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Brake caliper and rotor
     
    Wheel speed sensor
     
    Hub/bearing mounting bolts
     
    Hub/bearing assembly
     

  4.  

To install:

  1. Install or connect the following:

    Hub and bearing assembly. Tighten the bolts to 120 ft. lbs. (163 Nm).
     
    Wheel speed sensor
     
    Brake caliper and rotor
     
    Front wheel
     

  2.  

4-Wheel Drive
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Brake caliper and rotor
     
    Hub retainer nut
     
    Hub and bearing assembly
     

  4.  

To install:

  1. Install or connect the following:

    Hub and bearing assembly. Tighten the bolts to 125 ft. lbs. (170 Nm).
     
    Hub retainer nut. Tighten the nut to 175 ft. lbs. (237 Nm).
     
    Brake caliper and rotor
     
    Front wheel
     

  2.  

Coil Spring Suspension
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Brake caliper and rotor
     
    Wheel speed sensor
     
    Halfshaft nut
     
    Tie rod end from the knuckle
     
    Upper ball joint from the knuckle
     
    Knuckle from the halfshaft
     
    Hub/bearing mounting bolts
     
    Hub/bearing assembly
     

  4.  

To install:

  1. Install or connect the following:

    Hub and bearing assembly. Tighten the bolts to 120 ft. lbs. (163 Nm).
     
    Knuckle onto the halfshaft
     
    Upper ball joint on the knuckle. Torque the nut to 40 ft. lbs. (54 Nm) (on 1500 series, plus 90 degrees).
     
    Tie rod end to the knuckle. Tighten the nut to 45 ft. lbs. (61 Nm) plus 90 degrees.
     
    Halfshaft nut. Torque to 185 ft. lbs. (251 Nm).
     
    Wheel speed sensor
     
    Brake caliper and rotor
     
    Front wheel
     

  2.  

Coil/Link Suspension
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Hub extension from the rotor, if equipped
     
    Brake caliper and rotor
     
    Hub nut
     
    Wheel speed sensor wiring
     
    Hub/bearing mounting bolts 1 / 4 each. Then, tap the bolts with a mallet to loosen the hub/bearing assembly.
     
    Hub/bearing assembly, wheel studs/extension studs, rotor, shield and spacer
     
    Wheel speed sensor
     

  4.  

To install:

  1. Install or connect the following:

    Wheel speed sensor
     
    Rotor on the hub/bearing
     
    Studs
     

  2.  
  3. Apply a liberal amount of anti-seize compound on the splines of the front shaft.
  4.  
  5. Insert the 2 rearmost, top and bottom rotor hub bolts in the knuckle, so they extend from the front face as shown.

    Click image to see an enlarged view

    Fig. Hub bolt positioning

  6.  
  7. Install or connect the following:

    Spacer and shield
     
    Hub assembly onto the shaft
     

  8.  
  9. Align the bolt holes in the flange with the installed bolts. Thread the bolts onto the flange far enough to hold the unit in place.
  10.  
  11. Install the remaining bolts. Tighten all hub/bearing bolts to 149 ft. lbs. (202 Nm).
  12.  
  13. Install the washer and shaft nut. Tighten the nut to 132 ft. lbs. (179 Nm). Rotate the axle 5 to 10 times to seat the bearings. Tighten the nut to 263 ft. lbs. (356 Nm). Install a new cotter pin, advancing the nut for alignment.
  14.  
  15. The remainder of installation is the reverse of removal.
  16.  

5-Stud Hub/Bearing
  1. Raise and support the vehicle.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the cotter pin and axle hub nut.
  6.  
  7. Remove the caliper with adapter and rotor.
  8.  
  9. Remove the ABS speed sensor, if fitted.
  10.  
  11. Back the hub/bearing mounting bolts off 1 / 4 in. each.
  12.  
  13. Tap the bolts with a hammer to loosen the hub/bearing from the steering knuckle.
  14.  
  15. Remove the hub/bearing mounting bolts and then the hub/bearing.
  16.  

To install:

  1. Apply anti-seize compound to the splines of the drive shaft.
  2.  
  3. The remainder of the procedure is the reverse of removal. Tighten all hardware to the proper torque specifications. Refer to the charts. Use a new cotter pin.
  4.  
  5. After installation, apply the brake several times to seat the brake shoes and piston. Do NOT drive the vehicle until a firm pedal is achieved.
  6.  



Click image to see an enlarged view

Fig. Loosening the hub/bearing mounting bolts-Ram with coil/link suspension



Click image to see an enlarged view

Fig. Hub/bearing and related components: steering knuckle (1), axle (2) and hub/bearing bolts (3)

8-Stud Hub/Bearing
  1. Raise and support the vehicle.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the hub extension mounting nuts and remove the extension from the rotor, if equipped.
  6.  
  7. Remove the caliper.
  8.  
  9. Remove the cotter pin and hub nut.
  10.  
  11. Remove the ABS speed sensor.
  12.  
  13. Back the hub/bearing mounting bolts off 1 / 4 in. each.
  14.  
  15. Tap the bolts with a hammer to loosen the hub/bearing from the steering knuckle.
  16.  
  17. Remove the hub/bearing mounting bolts and then the hub/bearing.
  18.  

To install:

  1. Apply anti-seize compound to the splines of the drive shaft.
  2.  
  3. The remainder of the procedure is the reverse of removal. Tighten all hardware to the proper torque specifications. Refer to the charts. Use a new cotter pin.
  4.  
  5. After installation, apply the brake several times to seat the brake shoes and piston. Do NOT drive the vehicle until a firm pedal is achieved.
  6.  

To install:

  1. Apply anti-seize compound to the splines of the drive shaft.
  2.  
  3. The remainder of the procedure is the reverse of removal. Tighten all hardware to the proper torque specifications. Refer to the charts.
  4.  
  5. After installation, apply the brake several times to seat the brake shoes and piston. Do NOT drive the vehicle until a firm pedal is achieved.
  6.  



Click image to see an enlarged view

Fig. Removing the hub extension-8-stud hub/bearing



Click image to see an enlarged view

Fig. Removing the cotter pin and hub nut



Click image to see an enlarged view

Fig. Rotor and hub/bearing assembly

Independent Front Suspension
  1. Raise and support the vehicle.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the caliper.
  6.  
  7. Remove the dust cap, cotter pin, nut lock, nut and washer from the spindle.
  8.  
  9. Remove the outer wheel bearing.
  10.  
  11. Slide the hub/rotor off.
  12.  


WARNING
Use care to prevent the inner wheel bearing and seal from contacting the spindle threads.

  1. Remove the seal and inner wheel bearing from the hub/rotor.
  2.  
  3. Remove the inner and outer bearing cups from the hub/rotor with a pin punch, if desired. Cups cannot be reused once removed. Check for damage or wear in place.
  4.  

To install:

  1. Bearing and races must be replaced as a set, if worn or damaged.
  2.  
  3. Remove any burrs or roughness from the spindle with emery cloth. Clean thoroughly afterwards.
  4.  
  5. Clean bearings and cups with a safe solvent. Repack with a quality wheel bearing grease formulated for disc brakes.
  6.  
  7. Drive in the new bearing cups.
  8.  
  9. Grease all contact surfaces.
  10.  
  11. Install the inner wheel bearing with new bearing seal.
  12.  
  13. Slide the hub/rotor onto the shaft.
  14.  
  15. Install the outer wheel bearing, washer and retaining nut.
  16.  
  17. Tighten the nut to 30-40 ft. lbs. (41-54 Nm) to preload the bearing while rotating the hub/rotor. Stop the rotation, then loosen the nut completely. Then tighten the nut finger tight and install the nut lock. Use a new cotter pin.
  18.  


NOTE
End-play should be 0.001-0.003 in. (0.025-0.076mm).

  1. The remainder of the procedure is the reverse of removal.
  2.  



Click image to see an enlarged view

Fig. Wheel bearing assembly-1997-99 Ram with independent front suspension



Click image to see an enlarged view

Fig. Remove the dust cap to access the rotor hub nut



Click image to see an enlarged view

Fig. After the nut is removed, place it and the washer in a safe place



Click image to see an enlarged view

Fig. Remove the outer wheel bearing and set it aside for later inspection



Click image to see an enlarged view

Fig. Use a suitable tool, such as this seal remover from Lisle®, to remove the grease seal from the rotor



Click image to see an enlarged view

Fig. Inspect the bearing rollers for wear



Click image to see an enlarged view

Fig. This bearing is an example of one that wasn't properly maintained. Notice the sludge build-up from the old grease



Click image to see an enlarged view

Fig. Always spin the rotor while tightening the retaining nut to ensure proper wheel bearing adjustment



Click image to see an enlarged view

Fig. This exploded view shows the correct order of installation for the spring washer, nut lock and cotter pin



Click image to see an enlarged view

Fig. Install a new cotter pin as shown

  1. Raise and support the vehicle.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the caliper adapter bolts from the steering knuckle and remove the assembly.
  6.  


WARNING
Do NOT allow the caliper to hang by the hose.

  1. Remove the rotor from the hub/bearing wheel studs.
  2.  
  3. Remove the hub/bearing nut and slide the hub/bearing off the spindle.
  4.  


NOTE
The nut cannot be reused. Have a new one on hand before removal.

To install:

  1. Reverse the removal procedure. Use a NEW spindle nut. Tighten the nut to the following torque specifications:

    On LD 1500: 185 ft. lbs. (251 Nm)
     
    On HD 2500/3500: 280 ft. lbs. (380 Nm)
     

  2.  
  3. Tighten the caliper adapter assembly to the following torque specifications:

    On LD 1500: 130 ft. lbs. (176 Nm)
     
    On HD 2500/3500: 210 ft. lbs. (285 Nm)
     

  4.  



Click image to see an enlarged view

Fig. Hub/bearing assembly (1) and spindle (2)-2000 Ram with independent front suspension

 
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