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Hub assembly

6524 Views 7 Replies 7 Participants Last post by  jmaz268
I have a 2004.5 GMC 2500 4x4 and my front left hub went out. I'm goign to buy the part and do it myself tommorow. Do you guys have a part number for that part? A write up to do the fix? Please help!!!
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its really sinple and straight forward , u wont have a problem unless its rusted in the knuckle
like he said

im pretty sure dmax store carries them, and its pretty simple, i think there is 1 big bolt up front, 4 in behind and the 2 on your brakes and the abs hook up.. i could be wrong, its been a while

its easy though.. you might want a torque wrench.. or make em real tight
I have a 2004.5 GMC 2500 4x4 and my front left hub went out. I'm goign to buy the part and do it myself tommorow. Do you guys have a part number for that part? A write up to do the fix? Please help!!!
Part #515058

Not a bad job to do - about an hour's work.
thats right . caliper,and bracket,off ,, rotor off,, big nut on the axle in the middle off,, 4 bolts in behind on the knucle off,, i would undo the tierod at the knuckle also, makes everything alot simpler,, and smack smack with the swing press to get it off.,
I would use 6 point wrenches and sockets and not be afraid to use cheaters. 12 point wrenches tend to slip off and screw up the bolts. I ended cutting things off with a torch during my last hub change on the old '04.
NAPA # is BR930416, or PBR930416, (P prefix is value line), the PBR hub assemblies seem to be fine, and shouldn't cost more than 160$.
here is what alldata says step by step

Front Wheel Hub, Bearing, and Seal Replacement

Removal Procedure

Notice: Refer to Bearing Seal Damage Notice in Service Precautions.



1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
3. Remove the rotor. Refer to Brake Rotor Replacement - Front in Brakes and Traction Control.
4. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle.
5. Disconnect the electrical connection for the wheel speed sensor.



6. Remove the wheel driveshaft nut retaining cover.
7. Remove the wheel driveshaft assembly retaining nut (2) and washer (3) from the wheel driveshaft assembly. Disengage the wheel driveshaft from the wheel hub and bearing.
8. Remove the wheel hub and bearing (4) mounting bolts (15 Series).



9. Remove the wheel hub and bearing (4) mounting bolts (25 Series).



10. Remove the wheel hub and bearing and splash shield from the vehicle.
11. Remove the O-ring seal from the steering knuckle bore (25 Series).
12. Remove the wheel speed sensor mounting bolt (5).
13. Clean and inspect the O-ring seal (25 Series).
14. Replace the seal if the following conditions exist:

o Nicks
o Cuts
o Dry or brittle
o Compression set

Installation Procedure



1. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing assembly.
2. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
3. Install the O-ring (7) to the steering knuckle (25 Series). Notice: Refer to Fastener Notice in Service Precautions.
4. Install the wheel speed sensor mounting bolt to the wheel hub and bearing.

o Tighten the sensor mounting bolt to 18 Nm (13 ft. lbs.) .

5. Install the wheel hub and bearing and splash shield to the vehicle (25 Series).



6. Install the wheel hub and bearing (5) and splash shield (6) to the vehicle (15 Series).
7. Install the wheel hub and bearing mounting bolts (15 Series). Install the wheel hub and bearing mounting bolts (25 Series).

o Tighten the wheel hub to knuckle bolts to 180 Nm (133 ft. lbs.) .



8. Install the nut (2) and washer (3) retaining the wheel drive shaft assembly to the wheel hub and bearing.

o Tighten the nut to 210 Nm (155 ft. lbs.) .



9. Connect the electrical connection for the wheel speed sensor.
10. Install the wheel speed sensor and brake hose mounting bracket bolt to the steering knuckle.

o Tighten the bolt to 12 Nm (106 inch lbs.) .

11. Install the rotor. Refer to Brake Rotor Replacement - Front in Brakes and Traction Control.
12. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
13. Lower the vehicle.
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