carrier bearing
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From: Central Texas
Were you complaining about rearend noise? Is there noise? How many miles on her?
The carrier bearings are on each side (left and right) of the carrier and are pretty rugged. yes you can replace them yourself. The only thing you should know is there are spacers that are on each bearing. These align the carrier and MUST be replaced exactly where they are now. You should at the same time replace the pinion bearings too. If it is noisy then the pinion bearings are prolly the ones giving the problem.
Big Jim
The carrier bearings are on each side (left and right) of the carrier and are pretty rugged. yes you can replace them yourself. The only thing you should know is there are spacers that are on each bearing. These align the carrier and MUST be replaced exactly where they are now. You should at the same time replace the pinion bearings too. If it is noisy then the pinion bearings are prolly the ones giving the problem.
Big Jim
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From: Homer, Alaska
Another term for the driveshaft hangar bearing is a "carrier" bearing. Is that what you are referring to, or the rear end bearing as Big Jim stated?. If it is the hangar bearing, you should be able to replace it without too much difficulty. The driveshaft must be indexed (marked) so it goes back together as it comes out, including the flanges at the xmsn and rear end. Also the carrier housing may be shimmed, so make sure if it is you replace the shims in the same place.
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Well let me give the full version. I took it in because I was getting some vibration in the gas pedal, and it felt like it was coming from the back of the truck. Several technicians drove the thing and all gave differing opinions. So I'm trying to isolate it by diagnosing it myself. The vibration is worst at 35-45 mph, but is there pretty much all the time. One of the techs at the dealer did say that the rear end was full of metal, but he couldn't tell me how he came to that diagnosis, so that seemed a little fishy to me. Another tech said there was a lot of play in the carrier bearing which may be the cause.
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From: Central Texas
Originally Posted by wresleu
Well let me give the full version. I took it in because I was getting some vibration in the gas pedal, and it felt like it was coming from the back of the truck. Several technicians drove the thing and all gave differing opinions. So I'm trying to isolate it by diagnosing it myself. The vibration is worst at 35-45 mph, but is there pretty much all the time. One of the techs at the dealer did say that the rear end was full of metal, but he couldn't tell me how he came to that diagnosis, so that seemed a little fishy to me. Another tech said there was a lot of play in the carrier bearing which may be the cause.
Big Jim
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nope its not the tires or rims, they are brand new and have had them rotated and rebalanced within the past month. The vibration has been a battle even with the old tires/rims. And trust me, not many people look at me as a lion would a deer....i'm a VERY big/muscular guy. If anything I intimidate most people just on looks alone. The truck does have 135,000 on it and I've worked it pretty hard over time. It has been recommended that I change the driveshaft from my split two-piece to a solid 98+ model for more stability, have any of you done this? If so is it relatively painless?
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From: Homer, Alaska
Why don't you suck some of the oil out of the rear end and look at it. If the rear end was full of metal, the oil will surely show some of it. It will look like metal flake paint. A turkey baster with a flexible hose will pull out the oil. If the oil looks good, the problem is probably a u-joint or the hangar bearing. You can check those things pretty easily just by wiggling each one. Keep us posted. What year and model truck do you have?
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96 4x4 supercab, and tonight I pulled the diff. cover off and drained the gear oil, there was some metal flakes but not a lot. The teeth all seemed pretty intact. I couldnt get the flange off to change the rear ujoint (stripped those damn star bolts), but i did manage to change the forward ujoint. There is some play where the two driveshafts meet, but it seems like that rubber housing is the cause of that. So I'm at my wits end on this one. when I had the front of the driveshaft off I could wiggle it at the pinion bearing somewhat easily which makes me weary.
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From: Homer, Alaska
A little metal in the rear end oil is probably nothing to be concerned about. Flush it out and replace with new oil. Make sure you use API GL-5 90 hypoid oil and if it is a limited slip rear end, you need some friction modifier (about 4 ounces). The rubber housing you mention; is it the round carrier with about a 4 inch diameter bearing in it, or is it the boot over the splines on the driveshaft? I think you have a bad carrier bearing or a bad u-joint. The carrier bearing will move in the rubber housing if you wiggle it so don't worry about that. I'm guessing that's what you mean by the pinion bearing.
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From: southern california 4/now
hmm, well you might be able to remove the rear drive line/flange bolts (the ones you may have stripped) by using a 12 point 12mm.socket. and a carrier bearing (drive shaft support/ hanger bearing) will have slight play from the rubber bushing but an excess, but might be noticed with any clunking or friction felt... and is easy to change with a few tools. I didnt need any shims or align junk on my 96 and that was many miles and much abuse ago... jim's talking about the rear end . Rear end, or inner axle bearings may need to have a closer look at by removing the diff cover and inspecting for wear. A PINNION BEARING IS IN THE REAR END! EXCESS METAL IN THE REAR END IS BAD! if you are seeing slivers of metal than thats bad! When things dont line up right they have excessive wear! Ive beat the heck out of my two piece drive line and no problems. so if it aint broke dont fix it. I wish I were there to help and take a look see for myself, sorry brother. Ive been through it all and know what to look for...
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Hey- I had my carrier bearing replaced last summer as I blew the dang thing out coming home from Pa. I noticed especially in winter a noise from that area under truck before it went bad, and now am hearing the noise again. When they replaced the bearing, were they supposed to rebalance the driveshaft? Could this make the thing go bad again? Has anybody else had any probs. like this with theirs? I notice the noise esp. when its real cold out, around 25-35 mph. Any info. would be appreciated, thanks!
Cargo Master
Joined: Nov 2004
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From: Friendswood, Texas
Any play in the Universal Joints? Also, you mentioned that the tires were rebalanced recently and the tires were relatively new. Once upon a time long long ago, I had a 66 Mustang that I replaced tires on. Tire shops said they were balncng the tires but I could not get rid of the vibration. U-joints were fine but Fred Flintstone had a smoother ride. Turned out the tire shop had a problem with compressor maintenance and wasn't draining the water from the tank like they should. Water ended up in my rear tires. As you might imagine, tires were difficult to balance with water in them. I still can't figure out how the cement heads at the tire shop could look at me with a straight face and tell me the tires were balanced. You could hear it sloshing around in there when I finally pulled the tires off of the car myself. It may be long shot, but check for water in tires.
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Take hold of the pinion shaft (at the rear u joint) does it move up and down? It is not
supposed to if it does the pinion bearings are bad. If not if you have the cover off
try and pry the differential carrier back and forth(side ways, the way the axles run) does it move? It shouldn't. Bearings are bad or loose. The center bearing on the drive shaft
is easy to check, once you have the mounting loose spin it. You'll know if it's bad.
supposed to if it does the pinion bearings are bad. If not if you have the cover off
try and pry the differential carrier back and forth(side ways, the way the axles run) does it move? It shouldn't. Bearings are bad or loose. The center bearing on the drive shaft
is easy to check, once you have the mounting loose spin it. You'll know if it's bad.