Question about 1996 Chevrolet Blazer

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Front differential bearing

My 96 blazer front differential has a bad bearing on the drivers side (not a hub bearing). Is this replaceable without removing the differential from the blazer? I have replaced one on the opposite side of a 97 blazer without
removing the unit.

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  • Anonymous Mar 28, 2014

    How many hours does it take

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  • Master
  • 1,990 Answers

You do not need to remove it from the Truck for Repair. Just remember (Chalk the Wheels so it does not Roll!)

Posted on Jan 22, 2009

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96 blazer made grinding noise in front end now noise stopped 4 wd wont work


What you want to do is engage the system and then kill the engine. This will work with electric hubs if you leave the keyswitch on.

With the front tires off the ground, a locked hub should turn the c-v joint and try to turn the front differential. If the transfer case is locked in 4x4 then the front driveshaft should be locked too. The differential is caught in the middle. It may have spider gears which can break, but if the c-v joint turns something is not connecting inside the front differential.

If the front hubs are Vacuum activated, you should be able to apply Vacuum and do the same test.

Sep 09, 2012 | 1996 Chevrolet Blazer

1 Answer

2000 Chevy Blazer 4x4...started making a horrible loud noise after my cruise control went out. I have recently replaced my hub and the brake pads and the CV axle. The noise comes and goes and only happens...


does it get louder above 45-60mph? and much quieter at low speeds. It could be wheel bearings, a rear differential or front differential. If its a grinding humming noise its wheel bearings, listenin to see if theyre coming from the front or rear, left or right, or both when your driving to know what wheel bearing are bad. If its a whinning noise, its probably a differential. check and listen to hear if its coming from the front or rear. Also, check for loose plastic around the wheels. Lastly check your tires for uneven or choppy wear. move your hands front to back on the top of the tire. does it feel really choppy and rough, maybe you just need new tires

May 04, 2011 | 2000 Chevrolet Blazer

1 Answer

I have a noise coming from what sounds like the 4x4 drive axle in front. I have change the gear oil and still have the noise. Any recomendations.


I would check the wheel bearing/hub assemblies as I have replaced several of these. Usually they make a thrumming, rumbling, or growling type of noise that increases with speed and which may get louder or quieter when taking sharper curves at highway speeds. I"ve seen very few problems with the front differentials on these but have put in dozens of hub & bearing assemblies that are noisy or worn. Sometimes, but not always, if you raise the front tires off of the floor a few inches you can rock the top of the tire in & out a bit which can indicate a loose/worn hub but they can also make noise without having any looseness present so it isn't a perfect test. You may need to have the vehicle put up on a hoist where it can be more closely inspected. I have seen some pinion bearings go bad on the front differentials but it is fairly rare. Good luck, hope this helps out a bit.

Jul 07, 2010 | 2002 Chevrolet Suburban 2500

1 Answer

Moaning noise


has anyone checked the front drive shaft u joints, play in the differentials? differentials would come and go as you accelerated and let off.

Dec 17, 2009 | 1999 Chevrolet Blazer

3 Answers

How to change my front differential seal and bearing ? passenger side. I bought a new wheel bearing because of a humming sound on passenger side and doing so saw leaking seal and maybe the humming was...


That will be a Huge job. The whole front diff must come out of the car and the case will need to be taken apart to even gain acess to the carrier side bearings.
The hub bearing is where the wheel bolts up is that maybe what you are talking about?
Also the axle seal isn't that bad to do you need to remove the cv shaft then it's just a simple remove the seal and install the new one.
But all of these jobs will be big ones.

Oct 13, 2009 | 1999 GMC Jimmy

1 Answer

2003 chevy suburban front axle noise


Worn side bearings is where the noise is coming from and might as well do both sides, I used replace them in about 2-4 hours, depending on where Murphy happened to be. Disconnect both side inner CV joint, front prop shaft and the 4X4 actuator line. If you want to drop the front pumpken. Not sure if you have enough room if you want to change the bearing without removing the pumpken from the frame. You should see when you disconnect the CV shaft.

The front diffs are toys compared to the rear, if you use auto4wd too much there are bearings in your tranfer case that are similar to the side bearings in the front diff. In both appearance and durability and soon you'll replace those too.

Good luck and keep me posted.

May 26, 2009 | 2003 Chevrolet Suburban 1500

1 Answer

I need to replace my front wheel bearings and I was looking for a step by step instructions along with pictures show the parts?


You can't just replace the bearings. You've got to replace the entire wheel hub (thank you genius engineers at Chevy). My driver side front wheel was rubbing the frame and the hub cost around $350 plus $150 labor.

Apr 10, 2009 | 2001 Chevrolet Blazer

4 Answers

96 chevey blazer 4x4


Sounds like the front axle electric actuator is bad. these are mounted on the front differential housing. they are known to go bad.

Nov 02, 2008 | 1996 Chevrolet Blazer

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