How to pull bearings off a carrier

The driveshaft of a rear wheel or four-wheel drive vehicle is carefully assembled, precision balanced component that supplies power from the transmission to the rear center gears and then to each rear tire and wheel. Connecting the two sections of the driveshaft is a center support bearing, which is a "U" shaped metal bracket with a solid-rubber machined bearing on the inside.

The bearing is designed to keep both parts of the driveshaft solid in order to reduce harmonic vibration as the vehicle accelerates. Although its design and purpose is incredibly simplistic in nature, replacing a driveshaft center support bearing is not one of the easiest jobs to complete.

The main reason why many DIY mechanics struggle with driveshaft center support replacement due to the details involved with reassembly of the driveshaft. The driveshaft is a precision piece that is balanced perfectly before it is installed by the factory. It's also a very heavy piece of equipment. It's recommended not complete this job on your own without the proper tools, experience and support equipment. If you don't feel percent confident about replacing the driveshaft center support bearing, or don't have the recommended tools or help, please contact an ASE certified mechanic to complete this job for you.

Antoni's Carrier Bearing Replacement

A worn out or faulty center support bearing will produce a few symptoms that can alert the driver that a potential problem has occurred and requires replacement. Noted below are a few of these warning signs to look for before you make the decision to replace the driveshaft center support bearing.

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Step 1: Check for clunking noises when accelerating or decelerating. The most common sign that is a noticeable "clunking" sound coming from under the vehicle's floorboard.

You'll often hear this when you accelerate or when the vehicle changes gears or during braking. The reason this sound is made is because the inner bearing has worn out and causes the two attached driveshafts to become loose during acceleration and deceleration.

Step 2: Watch for shuddering during acceleration. Another warning indicator is when you feel a shudder on the floor board, the accelerator pedal or the brake pedal as you accelerate or brake.

A failed bearing is unable to support the driveshaft, and as a result the driveshaft will flex, causing a vibration and shuttering sensation that can be felt throughout the vehicle when it's broken. Once you've properly diagnosed the problem and you're fairly certain that the cause is due to a worn out center support bearing, the next step is to physically inspect the part.

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Before proceeding, ask yourself this simple question: "Without manually inspecting the part, how can I be percent certain that it's the root cause of the symptoms I'm trying to solve?

However, the center support bearing is exposed under the vehicle and easy to inspect.

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Step 1: Put your gloves and eye protection on. You don't want to start grabbling or handling metal objects without protection for your hands.

how to pull bearings off a carrier

The top of the center support bearing may be sharp and cause serious cuts to hands, knuckles and fingers. Plus, there will be a tremendous amount of dirt, grime and debris under your vehicle.

Since you'll be looking upward, it's likely that this debris will fall into your eyes. Although it's assumed that blood, sweat, and tears are needed to repair most vehicles, reduce the potential of blood and tears and think safety first. Step 2: Roll underneath the vehicle to where the center support bearing is located. Once you have the proper safety equipment in place, you'll need to ensure the vehicle is secure on the lift.

Step 3: Locate the front and rear driveshaft s. Find where these are located on your car. Step 4: Locate the center attachment where both driveshafts meet.

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This is the center support bearing housing. Step 5: Grab the front driveshaft and attempt to "shake it" near the center support bearing. If the drive shaft shakes or appears loose inside the bearing, the center support bearing needs to be replaced. If the driveshaft is solidly mounted in the bearing, you've got a different problem. Complete the same physical inspection with the rear driveshaft and verify the loose bearing.Help Remember Me?

What's New? Results 1 to 16 of Thread: How to remove carrier bearings? How to remove carrier bearings? What tool do you use to remove the carrier bearings on a D44 without destroying the bearings?

I've always used a standard bearing puller, but I've never been able to do it without screwing up the bearings either. If you're replacing the bearings, why does it matter if you destroy them or not? There is a clamp with a hole in the center that allows you to press them off by the inner race on a press.

It makes short work of the whole process. Any machine shop can do it for you if you don't have the goods. If you cross thread a bolt, there is no need for loctite. Run whatcha brung And hope you brought enough. Originally Posted by PovertyByJeep. Blake - I have one of these if you can wait to use it when you come pick up the housing. I have the same one as jdonato. Works great! The other style, as was mentioned, ruins the bearing. This one doesn't as long as you set it up correctly.

Originally Posted by jdonato. From the only state in the USA where O'dumbass failed to carry a single county. I ended up trading axles with Jay. I think it's the biggest carrier bearing known. Originally Posted by ZUK. Originally Posted by Blake Shepherd. What axle is that?

I've never seen a carrier bearing that had splines, nor have I seen ring gear bolts with retainers on them. I used to own a jeep Don't do zuks anymore and back into the Toyota thing. Navigation Menu. Current Trail Talk. Penrose again. All times are GMT The time now is AM.

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SKF offers tip on how to safety remove bearings

The latest industry news—straight to your inbox. Sign up for our eNewsletter now to stay in-the-know. We'll bring you the most relevant peer-to-peer conversations happening in the trade and tips and tricks to help you get the job done. Invalid email. This is required. Login to Your Account. Remember Me? Register Forgot password? What's New? Forum Manufacturing Today General Bearing removal from shaft. Page 1 of 2 1 2 Last Jump to page: Results 1 to 20 of Thread: Bearing removal from shaft.

Thread Tools Show Printable Version. Bearing removal from shaft What is the best way to remove this bearing Seeing as it is impossible to get anything behind it I am thinking my only method of attack is to grip the outside of the bearing with an adjustable bush sort of think Like a collet with a tiny lip on the end to catch the edge of the bearing This is the job bearing separators are made for. It will ruin the bearing but remove it. The link below is only to show what one looks like.Last Updated: April 7, References.

This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. There are 20 references cited in this article, which can be found at the bottom of the page.

This article has been viewed 4, times. Learn more If you notice your bearings start making noises, then it might be time to replace them. Soon enough, your trailer will be rolling along behind you smoothly again! Tip : You could also use a hollow cinder block or anything else you have handy that can support the hub assembly with a gap underneath the inner bearing. Warning : Be careful not to hit the seal on the back of the hub when you slide it onto the spindle or you might damage it.

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how to pull bearings off a carrier

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How to Replace a Driveshaft Center Support Bearing

Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Learn why people trust wikiHow. Explore this Article parts. Things You'll Need. Related Articles. Part 1 of All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc.

Take 1 wheel off the trailer to access the hub assembly. Loosen the nuts on all wheels with a lug wrench while the trailer is on the ground. Jack the trailer up just enough to lift the wheels off the ground.

Finish unscrewing the nuts on 1 wheel with the lug wrench, remove them, and slide the wheel off the hub. Make sure to do this on a hard, flat surface. You do not need to go under the trailer for any part of this process. Pry off the dust cap with a flathead screwdriver. The dust cap is a metal cap that sits in the middle of the hub.

Slide the tip of the screwdriver under the lip of the dust cap, tapping it in with a hammer if you need to. Use the screwdriver as a lever to pry up the dust cap using. Work your way around the perimeter of the cap until it is loose enough to pull off.

It covers the nut that holds the hub assembly to the spindle shaft of the trailer. You need to remove it so you can take the hub off the spindle and access the bearings.This tip focuses on removing bearings safely. The most dangerous tool you may have in your kit might well be a two-arm jaw puller. These devices, used correctly, can safely remove a press-fitted bearing from a shaft. But in many cases, the jaws of the puller don't reach the inner ring, which would be the safest place to apply the pulling force.

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So, we place the puller jaws on the outer ring and tighten the center spindle of the puller to apply the removal force. If the outer ring is slightly misaligned, you're applying force to two balls or rollers, and it's much more likely you'll fracture the bearing outer ring, sending dangerous chips flying.

There is also a chance the puller may slip off entirely if we aren't watching what we're doing. The safer tool, especially for the occasional user, is a three-arm jaw puller. It's simply a more stable arrangement, and generally centers itself during removal. You may hear the rollers "clunk" into place as the pulling force is evenly distributed through all the rolling elements to the bearings rings.

The safest method? Pull on the proper ring of the bearing — the one with the press fit. There are tools available to do the job. Is there a common thread developing here? Let's all take the time to get the right tool to do the job.

It's almost always safer, faster, and less destructive to the rest of the machine parts. Toggle navigation Toggle search.

how to pull bearings off a carrier

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Water Removal Capability Study. Aim Small, Miss Small! How to Cost Justify a Lubrication Program.Most methods of removing differential bearings result in the bearing not being re-usable. However what if you need to pull a brand new bearing back off to install a different shim? Pulling a brand new pinion bearing back off to install a different shim may need to be done to achieve a different pinion depth.

Many auto technicians will us a cut-off tool to remove old differential bearings. This is fairly quick and easy aside from all the flying debris from metal and pieces of the itchy cut-off wheel material.

how to pull bearings off a carrier

The airborne material caused by this method is harmful to breathe and may also end up in someones eye! Also the carrier or pinion may be weakened if the cut is made too far. A hairline cut may lead to a stress crack in time. Like the cut-off tool, most techs already have an air chisel aka air hammer in their tool box.

However, an air chisel may not work to drive an old pressed bearing off of a carrier or pinion. The gears usually prevent adequate access. A bearing splitter is typically what is recommended by most tool manufacturers. Although, they are hard to position behind the bearing race since they are always pressed completely flush. Then the race is still remaining to be dealt with. Sometimes the splitter can be tightened enough to grab the bearing assembly without it slipping.

Not a hundred percent of the time and the bearing is always destroyed. First the race is put onto the bearing. Then the bearing puller is put onto the race. Adjustments are made to the threaded collars on the tool and then the clam shells put on. A little movement is all that is needed. The retaining ring is placed over the clam shell and tool assembly. Never force the retainer on.

If it has to be forced something is not right. Once the tool is set up correctly, it can remove bearings safely and intact.Replacing the carrier bearings is a lengthy repair. If your car has some age on it chances are they are worn and can create knocking problems or excess vibration. Tools needed: various hand tools, screwdrivers, impact wrench not necessary but it makes the job many times easierjacks, jack stands A MUST!

Remove the fill plug from the transfer case, then the drain plug and drain the fluid. Mark where the driveshaft meets up to the rear differential so the orientation is maintained upon installation and remove the four bolts. Leave one in to hold it as you remove the rest of the shaft. Support the driveshaft with a few jacks or some blocks, you don't want it to drop or bend at the lobro joint too much.

Unbolt the two nuts at the rear carrier bearing. They are lock nuts so they will be tight the whole length of the stud. There may be some spacers so be sure to keep track of which stud they are on. Unbolt the exhaust hanger then the remaining two nuts holding the front carrier bearing on. Once you have everything unbolted you can drop the shaft and pull it out of the transfercase. Leave an oil pan underneath the transfercase as some gear oil will come out. Again be sure to keep the shaft straight, a second hand will help here.

Also be sure not to scratch the end that goes into the transfercase and is a good idea to wrap and tape it. Here you see the shaft out of the car. The lobro joint is that between the two bearings. Make a mating mark between the front shaft and the rear two so they may be lined up upon assembly. Unbolt the four bolts. Make a mark on the center shaft and the companion flange.

Unbolt the nut inside the companion joint. It is on there with ft lbs, impact wrench works nicely here, otherwise you will have to put the shaft in a vise. Be sure to remove the washer underneath. Use a puller to pull off the companion flange. Pry off the outside of the carrier bearing. Use a gear puller to remove the rest of the bearing. Bearing completely removed. Mark the rear shaft, center shaft, companion flange, and lobro joint to ensure alignment. Unbolt the lobro joint from the companion flange.

There will be a lot of grease inside, I would recommend wearing gloves at this point.