How to replace the bearing onthe slidingdoor middle the one in the middle

1. Remove the tire/wheel
2. Remove the top and bottom caliper
bolts/remove caliper.
3. Remove the four bearing housing bolts on
the inside of the housing
You will need a soft mallet to whack the housing until it comes out...don't worry you cannot hurt anything but you hands and your pride.

Since I am out in the middle of nowhere with internet, a woodsplitter, and no hydraulic press, I removed the hub assembly from vehicle and used the hydraulic woodsplitter to press the bearings out. An adapter can me made to cover the blade and provide a flat surface.

In order to change rotors on these you will need to remove the axle nut. Then remove the for bolts that hold the bearing to h knuckle onth back side of the knuckle. Then you can remove the rotor, bearing, hub assembly from the knuckle. Then remove the four bolts that hold the rotor to the hub and then you can finally remove the rotor. I will add that it is easier to do this with the knuckle removed from the vehice. You will need to tap the wheel bearing out of the knuckle and sometimes this will ruin the bearing so plan on replacing that at the same time.

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If the humming noise is at idle and the noise is coming from the middle of the engine , there is a lot of probabilities that the idler pulley for the timing belt is going bed.

If the noise is coming when the vehicle is moving ,the problem is a wheel bearing, the way to test for this bearings is a s follow, while driving in a empty street at the speed where the noise is present, go to the left the noise increases replace left bearing, go to the right the noise increase replace right wheel bearing.

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on my blazer it wasn't real hard to do you take off the tire and there are 3 bolts on the back of the bearing holding it on and one nut in the middle of the bearing there is also a sensor on the bearing you take all of these off and the bearing should come off you may need to use a puller to get it off when you put the new one on make sure you torque the bolts and the nut or something could brake inside and you will haft to replace the bearing again.

road wheel off, brake caliper removed from rotor disc, remove cap in middle of rotor exposing the bearing retaining nut, remove split pin that holds the nut from turning and wind off the large nut, once nut is removed you can remove the rotor and bearings, the rear roller bearing at the rear of the rotor may need to be levered off with a screwdriver, should come off easy, replace in reverse order

YOU NEED TO REMOVE THE CRANK TO ACCESS UPPER HALF OF BEARING. YOU WOULD ONLY BE ABLE TO CHANGE LOWER HALF WITH ENGINE IN TRUCK AND ONLY MIDDLE TWO JORNALS. NOT RECOMENDED IN TRUCK JOB

take off rear hub u have a inner and outter bearing ..change bearing dont forget to pack new bearing well with a GAA Bearing Grease...and install wheel and tighten middle nut till wheel is tight...then back it off enough that wheel turn but not too freely about half a turn back....GL

Replacing the mid-ship carrier bearing is not that hard.

You will need to unbolt the U-joints, seperate the drive shafts.
Unbolt bearing retainer. Take this to a good auto parts shop that has a machine shop. Tell them you need a new one and they will do the rest.

Is the noise in the front or middle? If it's in the front, it is most probably a wheel hub or differential case bearing. First I would check (or replace) all the gear lube in the transfer case and both differentials.
If the sound is under the middle of the jeep, it's probably a front output bearing in the transfer case.