Can’t find front bearings 2006 GMC truck

I hear noise from the front bearing ,but removed the tire and can’t find the front bearing and can they be packed ? need to know what type of truck does not have a front bearings. please help

• How to replace front hub bearings

FRONT HUB BEARINGS

Two-Wheel Drive

REMOVAL

1. Raise and support the vehicle.
2. Remove the tire and wheel.
3. Remove the rotor.
4. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle.
5. On 1500 series models, remove the wheel hub and bearing (4) mounting bolts, Fig. 1.
6. On 2500 and 3500 series models, remove the wheel hub and bearing mounting bolts (4), Fig. 2.
7. On all models, remove the wheel hub and bearing and splash shield from the vehicle.
8. On 2500 and 3500 series models, remove the O-ring seal from the steering knuckle bore.
9. On all models, remove the wheel speed sensor mounting bolt.
10. On 2500 and 3500 series models, clean and inspect the O-ring seal.
11. Replace seal if there are nicks, cuts, dry, brittle or compression set.
    INSTALLATION
12. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing.
13. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
14. On 2500 and 3500 series models, install the O-ring to the steering knuckle.
15. On all models, install the wheel speed sensor mounting bolt. Torque the bolt to 13 ft. lbs.
16. On 2500 and 3500 series models, install the wheel hub and bearing and splash shield to the vehicle.
17. On 1500 series models, install the wheel hub and bearing and splash shield to the steering knuckle.
18. Install the wheel hub and the bearing mounting bolts. Torque the bolts to 133 ft. lbs.
19. On 2500 and 3500 series models, install the wheel hub and bearing mounting bolts. Torque the bolts to 133 ft. lbs.
20. On all models, install the wheel speed sensor and brake hose mounting bracket bolt to the steering knuckle. Torque the brake hose retainer bolt to 106 inch lbs.
21. Install the rotor.
22. Install the tire and wheel.
23. Lower the vehicle.
    Four-Wheel Drive
    REMOVAL
    Do not reuse the nut. A new nut must be used when installing the wheel drive shaft.
    Wheel drive shaft boots, seals and clamps should be protected from sharp objects any time service is performed on or near the wheel drive shaft(s). Damage to the boot(s), the seal(s) or the clamp(s) may cause lubricant to leak from the joint and lead to increased noise and possible failure of the wheel drive shaft.
24. Raise and support the vehicle.
25. Remove the tire and wheel.
26. Remove the rotor.
27. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle, Fig. 3.
28. Remove the wheel drive shaft nut retaining cover, Fig. 4.
29. Remove the wheel driveshaft assembly retaining nut (2) and washer (3) from the wheel driveshaft, Fig. 5.
30. Disengage the wheel drive shaft from the wheel hub and bearing using axle remover tool No. J-45859, or equivalent.
31. On 1500 series models, remove the wheel hub (4) and the bearing mounting bolts (9), Fig. 1.
32. Wrap shop towels around the inner and outer wheel drive shaft boots.
33. On 2500 & 3500 series models, remove the wheel hub and bearing (4) mounting bolts, Fig. 2.
34. On all models, remove the wheel hub and bearing and splash shield from the vehicle.
35. On 2500 & 3500 series models, remove the O-ring seal from the steering knuckle bore.
36. On all models, remove the wheel speed sensor mounting bolt.
37. On 2500 & 3500 series models, clean and inspect the O-ring seal.
38. Replace seal if there are nicks, cuts, dry, brittle or compression set.
    INSTALLATION
39. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing assembly.
40. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
41. On 2500 & 3500 series models, install the O-ring to the steering knuckle.
42. On all models, install the wheel speed sensor mounting bolt to the wheel hub and bearing. Torque the sensor mounting bolt to 13 ft. lbs.
43. On 2500 & 3500 series models, install the wheel hub and bearing and splash shield to the vehicle.
44. On 1500 series models, install the wheel hub and bearing and splash shield to the vehicle.
45. Install the wheel hub and bearing mounting bolts.
46. On 2500 & 3500 series models, install the wheel hub and bearing mounting bolts. Torque the wheel hub to knuckle bolts to 133 ft. lbs.
47. On all models, install the nut and washer retaining the wheel drive shaft assembly to the wheel hub and bearing. Torque the nut to 177 ft. lbs.
48. Install wheel speed sensor and brake hose mounting bracket bolt to steering knuckle. Torque brake hose retainer bolt to 106 inch lbs.
49. Install the rotor.
50. Install the tire and wheel.
51. Lower the vehicle.
    REAR
    Heavy Duty
    REMOVAL
52. Raise the vehicle.
53. Remove the tire and wheel assembly.
54. Remove the hub and rotor assembly.
55. Remove the oil seal from the wheel hub using a suitable seal removal tool.
56. Remove the inner hub bearing, Fig. 6.
57. Remove the inner hub bearing cup using a brass drift and a hammer, Fig. 7.
58. Remove the retaining ring from the wheel hub, Fig. 8.
59. Remove outer hub bearing and bearing cup using wheel bearing race installer tool No. J-24426, or equivalent (2) and driver handle tool No. GE-8092, or equivalent (1), Fig. 9.
    INSTALLATION
    Each time you replace the wheel hub bearings, install a new oil seal in order to prevent the wheel hub from leaking.
60. Lubricate components with a light coat of high melting point EP bearing lubricant, noting following:
    a. Lubricate outer wheel bearing.
    b. Lubricate inner wheel bearing.
    c. Lubricate outer wheel bearing cup.
    d. Lubricate inner wheel bearing cup.
    e. Lubricate axle housing.
61. Install the outer bearing into the wheel hub.
62. Install the outer bearing cup into the wheel hub.
63. Drive the bearing cup into the wheel hub using the hub outer bearing race installer tool No. J-44419, or equivalent (2) and the driver handle tool No. GE-8092 (1), or equivalent.
64. Install the retaining ring into the groove. Ensure the retaining ring is fully and evenly seated in the groove.
65. Install the inner bearing cup.
66. Drive inner bearing cup into the wheel hub using wheel bearing race installer tool No. J-24427 (2), or equivalent and driver handle tool No. GE-8092 (1), or equivalent.
67. Install the inner bearing.
68. Install the new oil seal using the differential bearing and hub seal installer tool No. J-44420 (2), or equivalent and the driver handle tool No. GE-8092 (1), or equivalent.
69. Install the hub and rotor assembly.
70. Install the tire and wheel assembly.
71. Inspect and add axle lubricant to the axle housing, as required.
72. Lower the vehicle.