Question about 1998 Chevrolet Blazer

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I need a illustated view and step by step procedure on removing a differential front bearing on my 98 blazer 4 x 4

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Both pinion bearings are serviced as a whole, you buy them as a kit with seal and all, for directions go to autozone,chilton or mitchell on line

Posted on Aug 22, 2010

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Posted on Jan 02, 2017

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I have a 98' Chevy 4x4 blazer. When exccelerating


Check condition of tyres.
Also jack the vehicle up and spin each wheel, listening for a wheel bearing noise.
Another possibility might be either the differential or any drive shaft couplings.

Nov 08, 2012 | Cars & Trucks

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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

Differential bearing on the front how to I take it


What part do you want to take out? if it's the pinion bearing you have to remove the driveline remove the pinion nut pull the yoke off pull axles out and remove bolts to get to the inner bearings and the 3rd member bearing cap 2 bolts on each side.

May 28, 2010 | 1998 Chevrolet Blazer

1 Answer

98 Blazer 4WD front axel falling out of differential


I would dismantle the axle, fit new thrust bearings and anything else that is worn/damaged and reassemble/adjust clearance gaps to it, according to the service manual.

Mar 12, 2017 | 1998 Chevrolet Blazer

1 Answer

Front diff growl in 2wd


This would be a failing bearing in the differential. More specificly, I would suspect the pinion bearing. The differential will need to be disassembled and all (4) bearings and bearing races inspected for wear/ pitting.

Mar 24, 2010 | 1997 Chevrolet Blazer

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

1 Answer

How to remove motor when front differential in the way 98Blazer4X


get a haynes manual for the vehicle, that has step by step instructions with pics and shows everything....you can get this from autozone, pepboys, etc. that is the better manual and will show you everything you need to know plus tell you how to take it out without damaging anything..... hope this helps you....

Jun 20, 2009 | 1998 Chevrolet Blazer

2 Answers

How do I do a front drive shaft on a 99 silverado? My ujoint is out towards the back. I can see the front just has the 4 bolts to take that apart. what I am wondering is if the back slides out of the deal...


I see that the solution given is for an axle shaft and not the drive shaft that was asked about. I am 99% sure that if you take out the bolts the other end will slide out of the t-case. Then the u-joint can be replaced as normally done.

Jun 08, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Front differential bearing


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

Jan 22, 2009 | 1996 Chevrolet Blazer

1 Answer

Want to install a posi unit in my 2004 Ram Quad 2WD 9.25


REMOVAL
  1. Remove filler plug from the differential cover.
  2. Remove differential cover and drain the lubricant.
  3. Clean housing cavity with flushing oil, light engine oil or a lint free cloth. NOTE: Do not use steam, kerosene or gasoline to clean the housing.
  4. Remove axle shafts.
  5. Remove RWAL/ABS sensor from housing. NOTE: Side play resulting from bearing races being loose on case hubs requires replacement of the differential case.
  6. Mark differential housing and bearing caps for installation reference (REFERENCE MARKS).
  7. Remove bearing threaded adjuster lock from each bearing cap.
  8. Loosen differential bearing cap bolts.
  9. Loosen differential bearing adjusters through the axle tubes with Wrench C-4164 (THREADED ADJUSTER TOOL).
  10. Hold differential case while removing bearing caps and adjusters.
  11. Remove differential case. NOTE: Tag the differential bearing cups and threaded adjusters to indicate their location.

INSTALLATION
  1. Apply a coating of hypoid gear lubricant to the differential bearings, bearing cups, and threaded adjusters. A dab of grease can be used to keep the adjusters in position.
  2. Install differential assembly into the housing.
  3. Install differential bearing caps in their original locations (BEARING CAPS).
  4. Install bearing cap bolts and tighten the upper bolts to 14 N·m (10 ft. lbs.). Tighten the lower bolts finger-tight until the bolt head is seated.
  5. Perform the differential bearing preload and adjustment procedure. NOTE: Be sure that all bearing cap bolts are tightened to their final torque of 136 N·m (100 ft.lbs.) before proceeding.
  6. Install axle shafts.
  7. Apply a bead of orange Mopar Axle RTV Sealant or equivalent to the housing cover (COVER SEALANT). CAUTION: If cover is not installed within 3 to 5 minutes, the cover must be cleaned and new RTV applied or adhesion quality will be compromised.
  8. Install the cover and any identification tag and tighten cover bolts to 41 N·m (30 ft. lbs.).
  9. Fill differential with lubricant to bottom of the fill plug hole. Refer to the Lubricant Specifications for the correct quantity and type. NOTE: Trac-lok™ differential equipped vehicles should be road tested by making 10 to 12 slow figure-eight turns. This maneuver will pump the lubricant through the clutch discs to eliminate a possible chatter noise complaint.
DIFFERENTIAL BEARING PRELOAD AND GEAR BACKLASH The following must be considered when adjusting bearing preload and gear backlash:
  • The maximum ring gear backlash variation is 0.076 mm (0.003 in.).
  • Mark the gears so the same teeth are meshed during all backlash measurements.
  • Maintain the torque while adjusting the bearing preload and ring gear backlash.
  • Excessive adjuster torque will introduce a high bearing load and cause premature bearing failure. Insufficient adjuster torque can result in excessive differential case free-play and ring gear noise.
  • Insufficient adjuster torque will not support the ring gear correctly and can cause excessive differential case free-play and ring gear noise.
NOTE: The differential bearing cups will not always immediately follow the threaded adjusters as they are moved during adjustment. To ensure accurate bearing cup responses to the adjustments:
  • Maintain the gear teeth engaged (meshed) as marked.
  • The bearings must be seated by rapidly rotating the pinion gear a half turn back and forth.
  • Do this five to ten times each time the threaded adjusters are adjusted.

  1. Through the axle tube use Wrench C-4164 to adjust each threaded adjuster inward until the differential bearing free-play is eliminated. Allow some ring gear backlash approximately 0.25 mm (0.01 in.) between the ring and pinion gear. Seat the bearing cups with the procedure described above.
  2. Install dial indicator and position the plunger against the drive side of a ring gear tooth (RING GEAR BACKLASH). Measure the backlash at 4 positions, 90 degrees apart around the ring gear. Locate and mark the area of minimum backlash.
  3. Rotate the ring gear to the position of the least backlash. Mark the gear so that all future backlash measurements will be taken with the same gear teeth meshed.
  4. Loosen the right-side, tighten the left-side threaded adjuster. Obtain backlash of 0.076 to 0.102 mm (0.003-0.004 in.) with each adjuster tightened to 14 N·m (10 ft. lbs.). Seat the bearing cups with the procedure described above.
  5. Tighten the differential bearing cap bolts 136 N·m (100 ft. lbs.).
  6. Tighten the right-side threaded adjuster to 102 N·m (75 ft. lbs.). Seat the bearing cups with the procedure described above. Continue to tighten the right-side adjuster and seat bearing cups until the torque remains constant at 102 N·m (75 ft. lbs.)
  7. Measure the ring gear backlash. The range of backlash is 0.15 to 0.203 mm (0.006 to 0.008 in.).
  8. Continue increasing the torque at the right-side threaded adjuster until the specified backlash is obtained. NOTE: The left-side threaded adjuster torque should have approximately 102 N·m (75 ft. lbs.). If the torque is considerably less, the complete adjustment procedure must be repeated.
  9. Tighten the left-side threaded adjuster until 102 N·m (75 ft. lbs.) torque is indicated. Seat the bearing rollers with the procedure described above. Do this until the torque remains constant.
  10. Install the threaded adjuster locks and tighten the lock screws to 10 N·m (90 in. lbs.).

Jan 14, 2009 | 2004 Dodge Ram 1500

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