Question about 2003 GMC Envoy

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Sqeek and grind in front case on drivers side where shaft goes in

Was wondering if that spline gear inside case was mounted to a separate case peace that mounted to the outside of the front differential and if so can i take it off and replace it while it is in the car still or do i take it off and then replace the gear in the case and then put it back on ?

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  • 1,311 Answers

If you are talking about the Splined Disconnect, that is on the passenger side of the differential and is known for running dry and self distructing. Yes, it can be removed separately and replaced or repaired without any other disassembly. Below is a figure of parts of the front drive system.

sqeek and grind in front case on drivers side wher - 1_3_2013_12_29_37_am.jpg

Posted on Jan 03, 2013

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Posted on Jan 02, 2017

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SOURCE: 97 jimmy 4wd front differential

You cannot pull the front differential and drive the vehicle. The wheel bearings are tied into the front axle, and won't properly lubricate if not installed.

Posted on May 17, 2009

  • 2 Answers

SOURCE: grinding noise in front end and abs light came on

check wheel bearing play. if the play is excessive it will cause the abs sensor to come away from tone ring loosing signal, illuminating abs light.

Posted on May 31, 2009

  • 8 Answers

SOURCE: A grinding noise was come from front left side

sounds to me like your wheel hub locked up. need new one.

Posted on Jun 20, 2009

  • 21 Answers

SOURCE: My front differential is leaking!

neither of the previous solutions are coming from ppl who know what they are talking about. i am in the process of making this exact repair, on the same front differential. you have to un-bolt the cv from the axle shaft, then drop the front diff. the passenger side is easier to deal with than the driver side from what i'm experiencing. once you remove the axle tube from the passenger side it is very simple to dissassemble and replace seals and bearings. the drivers side however is a different story. there is a lock ring that holds the axle shaft into the diff on the drivers side, and i have yet to get to it to remove the axle shaft. once the axle shaft is removed, then you just pry out the seal and carefully tap a new seal in its place. reassembly is the opposite of disassembly. if you find out how to remove the axle shaft snap ring, please let me know. hope this helps

Posted on Aug 06, 2009

  • 1 Answer

SOURCE: how to change my front differential seal and

if ure changing passenger side a washer will drop behind the 4x4 shift fork in the diff as soon as u pull the cv axle out and u will have to drop the axle tube to reinstall this

Posted on Mar 01, 2010

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2002 ch trailblazer front differential cv shaft wont engage into 4wd. Are the gears bad in the differential??


cv shafts come in different lengths , left to right vehicle to vehicle
indicate a shaft too short to properly fit in the splines in the side gears of the differential

Nov 13, 2017 | 2002 Chevrolet TrailBlazer

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How to remove axle from front of 1998 windstar


  1. Raise and support the vehicle safely.
  2. Remove the front wheels.
  3. Insert a steel rod into the brake rotor to prevent the rotor from turning and loosen the axle wheel hub nut. Discard the nut.
  4. Remove the ball joint-to-front wheel knuckle retaining nut. Drive the bolt out of the front wheel knuckle using a punch and hammer.
  5. Remove the front brake anti-lock sensor and position it out of the way.
  6. Separate the ball joint from the front wheel knuckle using a prybar. Position the end of the prybar outside of the bushing pocket to avoid damage to the bushing.
Use care to prevent damage to the front wheel driveshaft joint boot.
  1. Remove the stabilizer bar link at the front stabilizer bar.
Make sure the CV-joint puller does not contact the transaxle shaft speed sensor. Damage to the sensor will result.
  1. Install a CV-Joint Puller (T86P-3514-A1) or equivalent between the inboard CV-joint and the transaxle case.
  2. Install a CV-Joint Extension (T86P-3514-A2) or equivalent into the puller and hand-tighten.
  3. Using an impact slide hammer, remove the driveshaft from the transaxle.
Do not allow the front wheel driveshaft and joint to hang unsupported. Damage to the front wheel driveshaft joint may result. Do not wrap wire around the front wheel driveshaft joint boot. Damage to the boot may result.
  1. Support the end of the driveshaft and joint assembly by suspending it from the chassis using a length of wire.
Never use a hammer to separate the outboard front wheel driveshaft joint from the wheel hub. Damage to the outboard front wheel driveshaft joint threads and internal components may result.
  1. Separate the outboard front wheel driveshaft joint from the wheel hub using a Front Hub Remover/Replacer (T81P-1104-C) or equivalent. Make sure the hub remover adapter is fully threaded onto the hub stud.
Do not move the vehicle without the outboard CV-joint properly installed, as damage to the bearing may occur.
  1. Remove the front wheel driveshaft and joint assembly from the vehicle.
To install:
Do not reuse the retainer circlip. A new circlip must be installed each time the inboard CV-joint stub shaft is installed into the transaxle differential.
  1. Install a new retainer circlip on the inboard CV-joint stub shaft by starting one end in the groove and working the retainer circlip over the inboard shaft housing end and into the groove. This will avoid overexpanding the circlip.
A non-metallic mallet may be used to aid in seating the retainer circlip into the differential side gear groove. If a mallet is necessary, tap only on the outboard CV-joint stub shaft.
  1. Carefully align the splines of the inboard CV-joint stub shaft housing with the splines in the differential. Exerting some force, push the inboard CV-joint stub shaft housing into the differential until the retainer circlip is felt to seat in the differential side gear. Use care to prevent damage to the inboard CV-joint stub shaft and transaxle seal.
  2. Carefully align the splines of the outboard front wheel driveshaft joint with the splines in the wheel hub, and push the shaft into the wheel hub as far as possible.
  3. Temporarily fasten the front disc brake rotor to the wheel hub with washers and two lug nuts. Insert a steel rod into the front disc brake rotor and rotate clockwise to contact the front wheel knuckle, to prevent the front disc brake rotor from turning during front wheel driveshaft and joint installation.
A new front axle wheel hub retaining nut must be installed.
  1. Manually thread the front axle wheel hub retaining nut onto the outboard CV-joint stub shaft housing as far as possible.
A new bolt and nut must be used to connect the front suspension arm to the knuckle.
  1. Connect the front suspension lower arm to the front wheel knuckle. Tighten the nut and bolt to 40-55 ft. lbs. (54-74 Nm).
  2. Install the front brake anti-lock sensor.
  3. Connect the front stabilizer bar link and tighten to 35-45 ft. lbs. (47-65 Nm).
Do not use power or impact tools to tighten the hub nut.
  1. Tighten the front axle wheel hub retaining nut to 157-212 ft. lbs. (213-287 Nm).
  2. Install the front wheels and lower the vehicle.
  3. Using the recommended type of fluid, fill the transaxle to the proper level.

Jul 07, 2014 | 1998 Ford Windstar

1 Answer

What is a differential on a 1997 Ford Escort


The differential is inside and part of the transaxle. A transaxle has both the transmission and the differential together as a single unit. On rear wheel drive cars, the differential would be in the rear end- the large center case on the rear axle. With front wheel drive, the differential is incorporated within the transaxle. It is used to keep the front drive wheels turning properly during steering turns.

The differential uses the same oil or fluid as in the transmission/transaxle case-it is all the same piece, not serviced or flushed separately from the transmission, or transaxle as front wheel drive cars are called.

May 17, 2014 | Ford Escort Cars & Trucks

1 Answer

I have a 1987 dodge ramcharger, and ther is play in the front axle and the passenger side hub, all bearing and in the hub have been replaced, will the play in the hub and the axle hurt anything to kee


the side play ( gear clearance) in the diff unit will not affect anything as they only work on changing direction ( turning corners) or in a bog. Unless you have planetary gears in the hubs then what you are feeling will be the axle spline clearance in the side gears in the diff.

Jan 02, 2014 | Dodge Cars & Trucks

1 Answer

2003 gmc envoy 4x4 problems. 4200 vortec engine. my front diff doesnt seem to be


The Selectable Four Wheel Drive (S4WD) Front Axle consist of the following components:
• Differential Carrier Housing
• Differential Case Assembly
• Inner Axle Shaft
• Intermediate Shaft Bearing Assembly (located on the right side of the oil pan)
• Electric Motor Actuator
The front axle on Selectable Four Wheel Drive (S4WD) model vehicles uses a disconnect feature mounted on the right side of the oil pan in order to engage and disengage the front axle. When the driver engages the 4WD system, the Transfer Case Control Module sends a signal to the electric motor actuator to energize and extend the plunger inside. The extended plunger moves the clutch fork and clutch fork sleeve across from the clutch fork outer gear that is splined to the right side wheel drive shaft to the clutch fork inner gear that is splined to the inner axle shaft. The locking of the two gears allows the axle to operate in the same manner as a semi-floating rear axle. A propeller shaft connects the transfer case to the front axle. The differential carrier assembly uses a conventional ring and pinion gear set to transmit the driving force of the engine to the wheels. The open differential allows the wheels to turn at different rates of speed while the axle continues to transmit the driving force. This prevents tire scuffing when going around corners and premature wear on internal axle parts. The ring and pinion set and the differential are contained within the carrier. The axle identification number is located on top of the differential carrier assembly or on a label on the bottom of the right half of differential carrier assembly. The wheel drive shafts are completely flexible assemblies consisting of inner and outer constant velocity CV joints protected by thermoplastic boots and connected by a wheel drive shaft.

How To Install Repair Replace 4x4 Front Axle Actuator Chevy Trailblazer...

May 11, 2017 | 2003 GMC Envoy

2 Answers

What do i need to take apart to remove the drivers side front drive axel to replace the universal joint at the hub? could the axel slide threw the hole for the axel berring assembly or do you need to take...


Have not done this on your truck but book says just the upper ball joint needs separated. See procedure below from autozone.com. Please let me know if you have questions.
  1. Remove or disconnect the following:

    Front wheels (left side should be sufficient in your case) Front hub cotter pin, retainer and nut (axle nut)
  2. Using a floor hydraulic jack, support the lower suspension arm.

    Upper ball joint cotter pin and castle nut Knuckle from the front suspension upper arm
  3. Lower the lower suspension arm and steering knuckle slightly to facilitate easier halfshaft removal.
  4. Remove the 2 disc caliper mounting bolts, then lift the front disc caliper off of the front disc brake caliper anchor plate and position aside. Do not allow the caliper to hang by the brake hose; suspend it from the vehicle's frame with strong cord or wire.
  5. Remove the 6 front halfshaft-to-differential bolts.
    WARNING Use care to avoid damaging the hub seal when removing the front halfshaft.

    jturcotte_175.jpg

Fig. Halfshaft-to-differential mounting bolts (3 of the 6 bolts shown)-2001-03 F-150 and 2004 F-150 Heritage Edition


7. Remove the inboard end of the halfshaft from the differential case or extension axle case. Separate the front halfshaft and joints from the hub, then remove the halfshaft and joints from the vehicle.



To install:

  1. Slide the halfshaft outboard end into the hub, making sure that the splines engage.
  2. Situate the inboard end of the halfshaft against the front differential flange and install the 6 halfshaft-to-differential bolts. Tighten the halfshaft bolts to 60 ft. lbs. (82 Nm).
  3. Install the front disc brake caliper onto the rotor and anchor plate, then install and tighten the 2 caliper mounting bolts to 21-26 ft. lbs. (28-36 Nm).
  4. Lift the lower suspension arm and steering knuckle up until the upper ball joint stud is inserted into the steering knuckle. Install the upper ball joint castle nut and tighten to 57-76 ft. lbs. (77-104 Nm). Install a new cotter pin.
  5. Install the hub nut onto the halfshaft and tighten the hub nut to 221 ft. lbs. (300 Nm).
  6. Install the hub nut retainer and a new cotter pin.
  7. Install the front wheels and tighten the lug nuts in a star-shaped sequence to 83-112 ft. lbs. (113-153 Nm).
  8. Lower the vehicle to the ground.

Jan 23, 2011 | 2002 Ford F250 Super Duty SuperCab

3 Answers

What is differential on a front wheel drive car?


The differential on a front wheel drive car is not a separate component, but is part of (inside) the transaxle. On a rear wheel drive car, the transmission and differential (drive axle) are separate, and connected togrther via a driveshaft.

The purpose of a differential is to allow the two driven wheels to turn at different speeds. As the car goes around a corner, the outside wheel travels further than the inside wheel, and thus must turn more revolutions. If the two wheels were solidly connected together, one tire would skid any time the car was not travelling in a straight line.

Dec 14, 2009 | 1998 Toyota Camry

1 Answer

Do I have to remove the control arm to replace the half shaft on a 2005 Ford Freestar?


no, here's the procedure for 2002 windstar, should be similar. please rate, thanks.

NOTE: This procedure applies to both the LH and RH halfshaft assemblies.
  1. Raise and support the vehicle. For additional information, refer to Section 100-02 .
  1. Remove the front wheel and tire assembly. For additional information, refer to Section 204-04 .
  1. Insert a steel rod in the brake disc to prevent the halfshaft from turning while removing the front axle wheel end nut.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: The front axle wheel end nut is a torque prevailing design nut. Do not reuse it.
    Remove the nut and washer.
    • Remove the steel rod in the brake disc.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Remove or tape the brake pads to prevent them from falling out of the anchor plate.
    s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: To prevent damage to the brake hose, do not allow the disc brake caliper to hang suspended from the hose.
    Remove the bolts and position the disc brake caliper aside.
  1. Remove the front brake anti-lock sensor harness from the clip.
  1. Remove and discard the nut and bolt.
    • If necessary, use a punch and a hammer to drive the bolt out of the knuckle.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Position the end of the pry bar outside the bushing pocket to avoid damage to the bushing.
    s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the front wheel driveshaft joint boot (3A331).
    Separate the front suspension lower arm from the knuckle.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Never use a hammer to separate the front wheel driveshaft joint (3B413) from the wheel hub. Damage to the joint threads and internal components can result.
    Using the special tool, press on the front wheel driveshaft joint until it is loose in the wheel hub.
  1. Rotate the front wheel knuckle rearward, while pulling it outward at the bottom and remove the front wheel driveshaft joint from the wheel hub.
  1. Using a pry bar, separate the inboard CV joint housing assembly (3B436) (3B437) from the transaxle.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the differential seal.
    Remove the halfshaft assembly with both hands.
Installation
  1. Lubricate the differential seal.
    • Use MERCON® V Automatic Transmission Fluid XT-5-QM or equivalent meeting MERCON® V specifications.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Install a new circlip every time you remove the halfshaft from the vehicle.
    On the RH side halfshaft only, install a new circlip in the groove in the inboard CV joint stub shaft.
    • Start one end in the groove and work the circlip over the shaft and into the groove. This will prevent the circlip from over-expanding.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not damage the inboard CV joint housing assembly and the differential seal.
    NOTE: If necessary, use a non-metallic mallet to aid in seating the circlip in the differential side gear groove (RH) or inboard CV joint housing (LH). Tap only on the outboard front wheel driveshaft joint.
    Align the inboard CV joint housing splines with the differential side gear splines (RH) or output shaft splines (LH), and push the inboard CV joint housing assembly inward until the circlip seats in the differential side gear (RH) or inboard CV joint housing (LH).
  1. Align the front wheel driveshaft joint splines and the wheel hub splines, and push the joint into the wheel hub as far as possible.
  1. Install the washer and the old nut. Using the old nut, seat the front wheel driveshaft joint in the hub. Remove the old nut and discard it.
  1. Connect the suspension lower arm to the knuckle.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Install a new bolt and nut.
    Install the new bolt and nut.
  1. Insert a steel rod in the brake disc to prevent the halfshaft from turning while installing the new front axle wheel end nut.
  1. Apply a small patch of Loctite 242 or equivalent meeting Ford specification WSK-M2G351-A5 to the last five front wheel driveshaft joint threads.
  1. s2w~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Install and tighten the new front axle wheel end nut to specification in a continuous rotation. Stopping the rotation during installation will cause the nylon lock to set incorrectly. This will cause incorrect torque readings while tightening the nut, and lead to bearing failure. Always install a new front axle wheel end nut after loosening the nut, or when the nut has not been installed to specification in a continuous rotation.
    Install and tighten the new nut to specification in a continuous rotation.
    • Remove the steel rod from the brake disc.
  1. Position the disc brake caliper and install the bolts.
  1. Install the front brake anti-lock sensor harness in the clip.
  1. Install the wheel and tire assembly. For additional information, refer to Section 204-04 .
  1. Lower the vehicle.
  1. Check and, if necessary, fill the transaxle to the correct level with the specified fluid. For additional information, refer to Section 307-01 .

Nov 15, 2009 | 2005 Ford Freestar

2 Answers

Loud roar or vibration


Start by inspecting your tires. Look for uneven tread ware, tire separation (a bubble) on the inside or outside. Then change the fluid in your front and rear differential. This will tell you if you have a gear problem. Change the fluid in your transfer case also for indication of a gear problem.

Jul 10, 2008 | 1999 GMC Suburban

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