I just replaced the wheel bearings on my 2001 dodge durango. This is the first vehicle I've done of which you have to buy the whole hub/wheel bearing assembly (vs just buying wheel bearings and pressing them into the hub). The question is regarding greasing the bearings since the new hub assembly is sealed up. Do I just grease the outside and on the spindle or do I need to remove the u-ring and grease the inside also?

replace the whole hub assembly..much easier

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Have you checked the condition of your brake pads? If lining is worn off and you're getting metal to metal contact between the pads and rotor, it will make a similar "roaring" sound.

no. just take out the 3 bolts. if it doenst come out, you may need to reinstall the bolts, but leave them slightly loose and put a socket on the end of the bolts and hit with a hammer.

About an hour a side...This is the whole job and pictures....

The hub and wheel bearing unit is serviced as a complete assembly. Replacement of the front drive hub and bearing assembly can be done without having to remove the steering knuckle from the vehicle. However, if the hub/bearing assembly is frozen to the steering knuckle, removal of the steering knuckle is required.

1. Disconnect the negative battery cable.
   
2. Remove the cotter pin from the end of the stub axle. Remove the nut lock and spring washer. With the brakes applied, loosen, but do NOT remove the axle nut and washer with the vehicle still on the ground or damage to the wheel bearing will result.
   
3. Raise and safely support the vehicle. Remove the wheel.
   
4. Remove the front brake caliper assembly from the steering knuckle assembly and support from the strut assembly using a strong piece of wire.
   
1. Remove the front brake rotor from the hub/bearing assembly.
   
2. Remove the retaining nut and washer from the halfshaft stub axle.
   
3. Remove the ABS wheel speed sensor from the steering knuckle.
   
4. Remove the 4 hub and bearing assembly mounting bolts from behind the steering knuckle.
   
5. Remove the hub and bearing assembly from the steering knuckle.
   
5. To install:
   
   1. Thoroughly clean the mating surfaces of the steering knuckle and the hub and bearing assembly of any foreign material or nicks so the surfaces are clean and smooth.
      
   2. Install the new hub and bearing assembly and tighten the mounting bolts in a crisscross pattern to 45 ft. lbs. (65 Nm). Be sure the hub and bearing assembly is seated squarely against the front steering knuckle.
      
   3. Install the disc brake rotor.
      
   4. Install the brake caliper assembly onto the steering knuckle.
      
   5. Install the axle washer and nut. Tighten but do not torque.
      
   6. Install the ABS wheel speed sensor.
      
   7. Install the wheel and lug nuts. Torque the lug nuts, in sequence, to 95 ft. lbs. (129 Nm).
      
   8. Lower the vehicle. Do NOT roll the vehicle until the axle nut has been properly torqued or damage to the front wheel bearings will result.
      
   9. With the vehicle's brakes applied, torque the axle nut to 180 ft. lbs. (244 Nm). Install the spring washer, nut lock and a new cotter pin. Wrap the cotter pin prongs tightly around the axle nut lock.
      
   10. Reconnect the negative battery cable. Check the wheel alignment.
       

The hub/bearing assembly is attached to the steering knuckle with four bolts



Removing a hub/bearing assembly




If the hub/bearing is "frozen" to the steering knuckle, separate the ball joint and lightly tap on the hub/bearing from behind




The hub/bearing assembly should free itself from the steering knuckle

About $60 a hub.

buy an older truck to answer question all newer model vehicles have gone to a hub/flange bearing assembly these bearing setups handle loads without or very minimum variance, when you go into a cornering situation these bearing setups give you a steady and consistent track thus a better handling vehicle now instead of cleaning and repacing tose old cone and race style bearings you just unbolt hub assembly and any related abs sensors and bolt on new

The old bearing need to be pressed out and the new one needs to be pressed in. This is done by removing the whole unit (hub) and taking it to a machine shop they will do it for about $40 You can also buy the whole hub unit it comes with a new bearing...also after you remove the unit you will have to have the steering alignment redone or your tire wont be at the correct angle

2001 Pontiac Grand Am 2.4L SFI DOHC 4cyl

Vehicle Speed Sensor - Location:
The speed sensors are built right into the wheel bearings of your vehicle, at the front and rear locations. They work both with the anti-lock brakes and with the traction control systems on the vehicle.

Removal & Installation
Front
The front wheel speed sensor is part of the hub/bearing assembly. Refer to Wheel Hub and Bearing Replacement in Front Suspension for service procedures.
Rear
The rear wheel speed sensor is part of the hub/bearing assembly. Refer to Wheel Hub and Bearing Replacement in Rear Suspension for service procedures.

I hope help you with this (remember rated this help) Have a nice day, good luck.

THE WHEEL BEARING HUB ASSEMBLY SHOULD COME WITH THE ABS ON YHE HUB , AT LEAST ALL THE ONES I'VE SEEN ARE LIKE THAT. I WOULD HAVE TO SEE THE HUB TO TELL YOU MORE BUT RAM 2500 HAS INBOARD AND OUTBOARD BEARINGS THAT CAN BE REPLACED WITH OUT BUYING THE WHOLE HUB

if u have to replace the whole hub asym it will come all togather.. or as a set of bearings that just sit in the hub.

well dude, it depends on what the shape the vehicle is in. i just bought a loaded 2001 durango 4x4 all power, black leather, heated seats...etc. i bought it for $2800. but its had 2 weird noises, (probably why i got such a good deal) one sounded like lifter noise in the engine that slowly went away for the most part when the engine heated up, it turned out i had an exhaust manifold bolt snapped off in the block. after a trip to the parts store, 60 cents, and 30 minutes i had the problem solved. then the other weird noise was a loud humming noise heard from about 20mph-80mph. some grinding when i turned, lots of clunking noise. thankfully my brother is a mechanic, he said it was probably a wheel bearing. so i went to O'riely auto parts, they wanted $237 for the whole wheel bearing/hub. so i went home and ordered one off the internet from AM autoparts, shipped to my house for $103 instead of O'reily's 237. and turns out it completely solved my problem, took about 1 hour to change. love the durango, drives good, sounds good, looks good. now i have a cruise controll problem...lol. still love the truck!