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How to fix the rear differential pinion seal on a 98 gmc sonoma

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  • Cars & Trucks Master
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Remove the tail shaft . undo the pinion nut with a impact gun and pull the pinion off the shaft. Using a suitable tool pick the seal out of the housing. replace it with a new seal leaving it flush with the housing edge. Check the pinion for a groove where the old seal was running . If there is one ,fit a "speedie" sleeve ( from a bearing shop) or get a new pinion . reinstall the pinion and do up the nut until it touches the pinion on the shaft. Add up to a 1/4 more turn or less . Too much will over tension the spacer between the bearings and cause rapid bearing failure. Refit the tail shaft

Posted on Jun 20, 2014

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Posted on Jan 02, 2017

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SOURCE: Rear Differential Seal Leak

No. This is a cheap repair even if you take to Chrysler or any repair facility. All they do is drop the drive line and remove the pinion nut and remove the seal and tap the new one into place. Should only take them about an hour at most to do this.

Posted on Mar 11, 2009

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There are fluid being leaked in the drive shaft in the rear of my rear wheel drive truck causing it to be flung all over underneath between the tail fate and the gas tank 98 gmc Sonoma


This would be caused by either a seal at the rear pinion or the transmission. should be easy to determine. just follow the fluid back to its source.

May 07, 2014 | Cars & Trucks

1 Answer

Gear oil leaking from rear of drive shaft


You need to replace the seal for the pinion. ou need to remove the drive shaft off the pinion yoke thene you will find a big nut in the center of the yoke that has to be removed but before you remove the nut check to see if there is any kind of play on the yoke if there is play the pinion bearing will have to be replaced if that is the case your better off having a mechanic do the job. If there is no play remove the nut pull the yoke off replace the seal and reinstall in reverse order.

Mar 06, 2014 | 1986 GMC Jimmy

1 Answer

Rear differential seal


There are two places it can leak from. The rear differential cover or the pinion seal at the front of the differential. Both are easy to replace. The pinion seal will require a little more labor than the differential cover plate. You will have to remove the drive line and then break the pinion nut loose. Use a good impact wrench for this and a six point socket for that step. Then you will need to remove the yoke from the pinion gear. Should be able to tap it off. If not use a puller. Remove the old pinion seal with a flat tip screw driver by driving it through the lip of the old seal and push the screwdriver to the side and it will pop out. Clean the hole for the new seal. install the new seal and the yoke. Tighten the pinion nut. You will need to get access to a manual to check the bearing preload on the pinion nut. Then use a torque wrench to check for correct bearing preload. Re-install the drive line.

Apr 07, 2012 | 2006 Ford Expedition

1 Answer

1998 ford explorer 2 wheel drive rear wheel bearing replacement


what about it?

conventional axle or limited slip? Get axle code off door sticker.

SECTION 205-02: Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear 1998 Explorer/Mountaineer Workshop Manual
IN-VEHICLE REPAIR Rear Wheel Bearing and Axle Shaft Oil Seal -4.0L SOHC and 4.0L EI, Conventional
Special Tool(s) swn~us~en~file=st1514a.gif~gen~ref.gif Axle Seal Replacer
T83T-1175-A swn~us~en~file=st1283a.gif~gen~ref.gif Axle Wheel Bearing Puller
T83T-1225-A swn~us~en~file=st1322a.gif~gen~ref.gif Axle Wheel Bearing Replacer
T83T-1225-B swn~us~en~file=st1326a.gif~gen~ref.gif Driver Handle
T80T-4000-W swn~us~en~file=st1185a.gif~gen~ref.gif Impact Slide Hammer
T50T-100-A
Removal
  1. Remove the axle shaft; refer to Axle Shaft in this section.
Axle Shaft Removal
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not use heat to loosen a seized lug nut. Heat can damage the wheel (1007) and the rear wheel bearings (1225).
    Loosen the lug nuts (1012).
    1. Remove the center cap.
    1. With the weight of the vehicle on the wheels, loosen the lug nuts.
  1. Raise and support the vehicle.
  1. Remove the wheel and tire assembly.
    1. Remove the lug nuts.
    1. Remove the wheel and tire assembly.
  1. Remove the axle housing cover (4033).
    1. Loosen the axle housing cover bolts (4346) and drain the rear axle (4001).
    1. Remove the axle housing cover bolts.
    1. Remove the axle housing cover.
  1. Remove the rear disc brake rotors (2C026); refer to Section 206-04 .
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Once the differential pinion shaft (4211) has been removed, turning the differential case (4204) or an axle shaft (4234) will cause the differential pinion gears (4215) to fall out of the assembly. This could result in chipped or damaged components.
    Remove the differential pinion shaft.
    1. Remove the differential pinion shaft lock bolt.
    1. Remove the differential pinion shaft.
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the rubber O-rings in the U-washer grooves.
    Remove the U-washers (4N237).
    1. Push the axle shafts inboard.
    1. Remove the U-washers.
  1. Reinstall the differential pinion shaft.
    1. Install the differential pinion shaft.
    1. Install the differential pinion shaft lock bolt finger-tight.
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the inner wheel bearing oil seal (1177).
    Remove the two axle shafts.
Installation
  1. Lubricate the lip of the inner wheel bearing oil seal.
    • Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Once the differential pinion shaft has been removed, turning the differential case or an axle shaft will cause the differential pinion gears to fall out of the assembly. This could result in chipped or damaged components.
    Remove the differential pinion shaft.
    1. Remove the differential pinion shaft lock bolt.
    1. Remove the differential pinion shaft.
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the inner wheel bearing oil seal.
    Install the two axle shafts.
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the rubber O-rings in the U-washer grooves.
    Install the U-washers.
    1. Position the two U-washers on the button end of the axle shafts.
    1. Pull the axle shafts outward.
  1. Install the differential pinion shaft.
    1. Align the hole in the differential pinion shaft with the differential pinion shaft lock bolt hole.
    1. Install the differential pinion shaft lock bolt.
  1. Install the rear disc brake rotors; refer to Section 206-04 .
  1. Install the axle housing cover and fill the rear axle housing (4010) with 2.4 liters (5.5 pints) of specified lubricant; refer to Axle Housing Cover in this section.
  1. swn~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Always remove any corrosion, dirt or foreign material that may be present on the mounting surfaces of the wheel or the surface of the wheel hub or rear disc brake rotor that contacts the wheel. Installing wheels without proper metal-to-metal contact at the wheel mounting surfaces can cause the lug nut to loosen and the wheel to come off while the vehicle is in motion, causing loss of control.
    Clean the wheel hub and mounting surfaces.
  1. Install the tire and wheel assembly.
    1. Position the tire and wheel assembly.
    1. Install the lug nuts and lower the vehicle.
    1. Tighten the lug nuts.
    1. Install the center cap.


  1. swn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Never remove the axle shaft oil seal by itself. Always remove the rear wheel bearing and the axle shaft oil seal at the same time.
    NOTE: If the axle shaft oil seal is leaking, the axle housing vent may be plugged with debris.
    Use Impact Slide Hammer and Axle Wheel Bearing Puller to remove the rear wheel bearing and the axle shaft oil seal.
Installation
  1. Lubricate the new rear wheel bearing.
    1. Use Thermally Stable Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
  1. Use Axle Wheel Bearing Replacer with Driver Handle to install the rear wheel bearing.
  1. Lubricate the lip of the new axle shaft oil seal.
    • Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
  1. Use Axle Seal Replacer with Driver Handle to install the axle shaft oil seal.
  1. Install the axle shaft; refer to Axle Shaft in this section.

May 18, 2011 | Ford Explorer Cars & Trucks

1 Answer

I have a 2003 Dodge Ram 1500 4x4. When the truck slows to a stop, and just as it stops, there is a very loud grinding noise that comes from the rear of the vehicle. I checked underneath and there is fluid...


The fluid splattered all over is most likely coming from the pinion seal. (The seal at the front of the differential where the driveshaft yoke goes in.) Normally, you would remove the driveshaft and the pinion yoke to relace the seal. The grinding however, leads me to believe that the seal leaking is a RESULT not a CAUSE of your problem. The way you describe it sounds like you may have some serious pinion and/or ring gear damage inside the differential.
If this is the case, there are severl ways to go about repairing this. You could tear your differential apart and replace the defective/damaged parts inside. You could replace your differential with a used one from a salvage yard. You could replace your differential with a remanufactured differential assembly.

To check for damage, remove the rear cover from the differential and check for metal in the oil and in the bottom of the housing. You can also turn the ring gear around and check for broken teeth. You can also inspect the spider gears and pinion gear for damage.


















dttech_62.gifdttech_64.gif

Apr 30, 2011 | Dodge Ram 1500 Cars & Trucks

1 Answer

What is a pinion seal verses a rear main differential seal?


PINION SEAL GO INSIDE THE ASSAMBBLY BOX, REAR MAIN DIFFERENTIAL SEAL OUTSIDE CLOSE TO DRIVE TRAIN BAR

Jan 26, 2011 | 1999 Lexus RX 300

1 Answer

Replacing a rear wheel bearing 1996 gmc sonoma 5 speed what all is involved does the axle have to come out or can you just take wheel and brakes drum off etc.


To remove the rear axle to replace a bearing you have to remove the rear differential cover and remove the small retaining bolt holds the spider gear shaft in place and then slide this shaft out far enough to remove the "C" shaped axle shaft retaining clip. Once this clip is off then the axle can be slid out and the bearing & seal replaced. Make sure that none of the spider gears or thrust washers behind them get out of place and you should use a new retaining bolt when reassembling the differential components as they come [or should come this way] with thread locker to prevent them from coming loose.

Jun 22, 2010 | 1996 GMC Sonoma

1 Answer

How do you change a wheel seal on a mercury mountaneer 1998 rear end


Axle Vent
NOTE: If the vent cannot be cleared, it must be installed new.
A plugged vent will cause excessive seal lip wear due to internal pressure buildup. If a leak occurs, check the vent. Make sure the vent hose is not kinked. Remove the hose from the vent nipple and clear the hose of any foreign material. While the hose is removed, pass a length of mechanics wire or a small diameter Allen wrench in and out of the vent to clean it. Connect the hose when done. The vent is located on the drivers side top of axle housing.
If you plan on doing most repairs yourself I would suggest buying a Haynes or Chilton manual for your particular vehicle. Or there are some data disks on e.bay($12-$15) For a cost of under $25, you can almost do any repair yourself with these manuals.Also there are online manuals like the site called ALLDATA where guides can be viewed for a fee. All these solutions will save you time and money, and give peace of mind over correct repairs. I can post you some procedures here also.
  1. CAUTION: Do not use heat to loosen a seized lug nut. Heat can damage the wheel (1007) and the rear wheel bearings (1225).
  2. Loosen the lug nuts (1012).
  3. Remove the center cap.
  4. With the weight of the vehicle on the wheels, loosen the lug nuts Raise and support the vehicle. .Remove the wheel and tire assembly.
  5. Remove the lug nuts.
  6. Remove the wheel and tire assembly. Remove the axle housing cover (4033).
    1. Loosen the axle housing cover bolts (4346) and drain the rear axle (4001).
    1. Remove the axle housing cover bolts.
    1. Remove the axle housing cover.
    2. a167554.gif
7.Remove the rear disc brake rotors You will have to remove the brake caliper to get rotor off.
8. CAUTION: Once the differential pinion shaft (4211) has been removed, turning the differential case (4204) or an axle shaft (4234) will cause the differential pinion gears (4215) to fall out of the assembly. This could result in chipped or damaged components.
9.
1.Remove the differential pinion shaft lock bolt. 2.Remove the differential pinion shaft. 4fd1df0.gif 10.CAUTION: Do not damage the rubber O-rings in the U-washer grooves. Remove the U-washers (4N237).
  1. Push the axle shafts inboard.
  2. Remove the U-washers.
  3. 9499075.gif
    11.Reinstall the differential pinion shaft.
    1. Install the differential pinion shaft.
    1. Install the differential pinion shaft lock bolt finger-tight.
    2. 91fc782.gif
      12.CAUTION: Do not damage the inner wheel bearing oil seal (1177). Remove the two axle shafts. 1848771.gif
CAUTION: Never remove the axle shaft oil seal by itself. Always remove the rear wheel bearing and the axle shaft oil seal at the same time. NOTE: If the axle shaft oil seal is leaking, the axle housing vent may be plugged with debris. Use Impact Slide Hammer and Axle Wheel Bearing Puller to remove the rear wheel bearing and the axle shaft oil seal.

0ffed5b.gifAxle bearing puller end..
Installation
Lubricate the lip of the inner wheel bearing oil seal.
Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
  1. CAUTION: Once the differential pinion shaft has been removed, turning the differential case or an axle shaft will cause the differential pinion gears to fall out of the assembly. This could result in chipped or damaged components.
  2. Remove the differential pinion shaft.
  3. Remove the differential pinion shaft lock bolt.
  4. Remove the differential pinion shaft.
  5. 5a472e0.gif
    CAUTION: Do not damage the inner wheel bearing oil seal. Install the two axle shafts. CAUTION: Do not damage the rubber O-rings in the U-washer grooves. Install the U-washers.
    1. Position the two U-washers on the button end of the axle shafts.
    1. Pull the axle shafts outward.
    2. 345272a.gif
      Install the differential pinion shaft.
      1. Align the hole in the differential pinion shaft with the differential pinion shaft lock bolt hole.
      1. Install the differential pinion shaft lock bolt.
      2. 49e064a.gif
                                                            Install the rear disc brake rotors; Install the axle housing cover and fill the rear axle housing (4010) with 2.4 liters (5.5 pints) of specified lubricant
                                                            WARNING: Always remove any corrosion, dirt or foreign material that may be present on the mounting surfaces of the wheel or the surface of the wheel hub or rear disc brake rotor that contacts the wheel. Installing wheels without proper metal-to-metal contact at the wheel mounting surfaces can cause the lug nut to loosen and the wheel to come off while the vehicle is in motion, causing loss of control. Clean the wheel hub and mounting surfaces. Install the tire and wheel assembly.
                                                            Position the tire and wheel assembly. Install the lug nuts and lower the vehicle. Tighten the lug nuts. Install the center cap. 6a78fd6.gif WHEW Hope this can help you

                                                            Mar 21, 2010 | 1998 Mercury Mountaineer

                                                            1 Answer

                                                            Replace left rear axle seal 1999 ford explorer


                                                            Axle Shaft Removal
                                                            1. Raise and support the vehicle. For additional information, refer to Section 100-02 .
                                                            1. Remove the wheel and tire assembly. For additional information, refer to Section 204-04 .
                                                            1. Remove the differential housing cover (4033).
                                                              1. Loosen the bolts and drain the lubricant from the rear axle housing (4010).
                                                              1. Remove the bolts.
                                                              1. Remove the differential housing cover.
                                                            Remove the rear brake disc (2C026). For additional information, refer to Section 206-04 .
                                                            1. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Turning the differential case (4204) or an axle shaft (4234) with the differential pinion shaft (4211) removed will cause the differential pinion gears (4215) to fall out of the assembly and damage the components.
                                                              Remove the differential pinion shaft.
                                                              1. Remove the differential pinion shaft lock bolt.
                                                              1. Remove the differential pinion shaft.
                                                            2. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the rubber O-ring in the U-washer groove.
                                                            3. Remove the U-washer (4N237).
                                                            4. Push the axle shaft inboard.
                                                            5. Remove the U-washer.
                                                            Reinstall the differential pinion shaft.
                                                            1. Install the differential pinion shaft.
                                                            2. Install the differential pinion shaft lock bolt finger-tight.
                                                            3. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the wheel bearing oil seal (1177).
                                                              Remove the axle shaft.
                                                            -----------------------------------------------------------------------------------------------------------------
                                                            Seal Removal
                                                            1. Remove the axle shaft (4334). For additional information, refer to Axle Shaft in this section.
                                                            1. sxn~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Never remove the wheel bearing oil seal (1177) by itself. Always remove the rear wheel bearing (1225) and the inner wheel bearing oil seal at the same time.
                                                              NOTE: If the wheel bearing oil seal is leaking, the axle housing vent may be plugged with foreign material.
                                                              Using the special tools, remove the rear wheel bearing and wheel bearing oil seal together.
                                                            6c7eb46.gif Installation
                                                            1. Lubricate the new rear wheel bearing.
                                                              • For 4.0L SOHC and 4.0L EI with limited slip rear axles and 5.0L vehicles, use SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B or equivalent meeting Ford specification WSL-M2C192-A.
                                                              • For 4.0L SOHC and 4.0L EI with conventional rear axles, use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
                                                            1. Using the special tools, install the rear wheel bearing.

                                                            ece7d89.gif
                                                            1. Lubricate the lip of the new wheel bearing oil seal.
                                                              • Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
                                                            1. Using the special tools, install the wheel bearing oil seal.
                                                            c21e27d.gif
                                                            1. Install the axle shaft. For additional information, refer to Axle Shaft in this section.

                                                            Feb 22, 2009 | 1999 Isuzu Rodeo

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