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2002 gmc sierra rear differential diagram - Sierra 1500 GMC Cars & Trucks

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6ya6ya
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Posted on Jan 02, 2017

ftw1952
  • 10319 Answers

SOURCE: need diagram to repair 2003 GMC Sierra spider

The bolts that hold everything in once out is very easy to replace. It islike removing a big turkey from the ovenwith the up most care.. The only trick is to remov the screw inside the pin holding the side gears in place which is inside the carrier housing

Posted on Jun 02, 2010

  • 198 Answers

SOURCE: 2004 gmc sierra rear differential

remove cover.take off back wheels and calipers (or drums).turn differential to where you see small bolt/pin (5/16) horizontally (same direction as axles)on right side of differential.remove bolt/pin.A large pin (about 5"long 3/4"diameter) should slide out differential with ease ( you may have to tap one side of the large pin).turn differential to completely remove large pin.turn differential so you can see in the view window.push each axles in (they'll go in about 1 1/2"each) You may hear one of the axle C-clips fall.If not use a small telescoping magnet to remove the C-clips from the axles through the differential window.pull each axle out about 10"so they are out of the diff.Now remove the cap bolts(4-5/8"bolts) and remove the caps(mark the caps so they go in excactly the way they came out.be careful the diff might fall out.If not you may have to use a long bar or 2x4 to wedge and pry the differential out. Have a basket/crate w/rags in it to catch the diff.TIP:If you are removing the ring gear from the diff, the bolts are left handed bolts meaning you have to turn them clockwise to loosen and counter clockwise to tighten ; )

Posted on Sep 15, 2009

Testimonial: "thank you helped ALOT perfect instructions "

  • 51 Answers

SOURCE: how to replace differential bearings on a 2002 gmc

1. jack up the truck and support the axle with two jackstands
2. remove your wheels, differential cover(use an oil pan for fluid is going to spill everywhere)
3. remove your roll pin, it has a small bolt (use 1/4 inch drive with socket to save yourself from living hell)  (inside the gear carrier with the four small gears (it is ok to spin the axle at this time (remove your driveshaft or chauk the wheels and put the car in 2 wheel drive and in neutral)
4. after the pin is removed, DO NOT SPIN THE AXLES, push the axles toward the differential, remove the "C" clips at the end of each axle shaft, then slide your axles out of the axle tube.
5. now, unbolt the two carrier holding clamps (4 large bolts) and carefully remove the carrier, on each end of your carrier should be 2 out of the four bearings that could need replacing. (note that without specialized precision tools this will be impossible to reassemble correctly, this is concidered to be an "A" grade technitian's job in the work force) (reply back if you want a list of tools and tests you will need in order to get your differential working again)
6. remove the driveshaft if you havent done so already and unbolt the pinion gear nut (hidden inside the driveshaft yolk attached to the differential) (an impact gun is recommended because the pinion will spin and if you try to hold it, it will cut open your hands) then carefully slide the pinion out of the large opening in your differential.
7. the last two of four differential bearings will be here, previously supporting your pinion gear + shaft. they will fall out but you will need a brass punch and hammer to remove the outer bearing races that have been pressed into your differential.
8. clean the now open differential cavity plus gears with brak-kleen or other grease and oil remover then wipe clean with a lint free rag.(inspect for any damage and replace if nessisary)
9. hammer your pinion gear races in EVENLY and in the right spot, double check that everything came out in the same order that your about to put them in.
10. install new bearings and find (i couldnt tell you where) a new crush collar for your pinion gear.
11.after your pinion bearings are in, put your new pinion oil seal into the differential (a wooden board or any other flat stock will help) and hammer in evenly. (oil the seal before installing)
12. take off the old crush collar and install the new one (note the size difference)
13. when the pinion is in, reinstall the driveshaft yolk and tighten the pinion nut to 250-350 foot pounds (no you do not need glasses, you read that correctly)
14. (here is where the presicion work begins on your new differential) if you want to take it to a professional i do not blame you. if you really feel you can do this on your own, ask for the last 10-20 steps and ill gladly give them to you.

Hope this helps!
                       Joe.

Posted on Mar 09, 2010

  • 236 Answers

SOURCE: 2003 gmc sierra rear differential oil how much and

85 or 90w will be fine, take the differental plug out and add fluid until it just does start to run out of check hole

Posted on Jan 14, 2011

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1 Answer

How do I remove the rear differential from the housing


if you have the retaining/side bearing caps off then you pull the differential assembly out of the housing, sometimes its stuck in place and requires to be forced loose to remove.

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Door speaker wiring diagram for 2002 sierra


2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Amplifier Location: Under the center console.
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Dec 20, 2012 | 2002 GMC Sierra 1500

2 Answers

How to install a new rear axle in a 02 gmc sierra 1500


Jack it up ,pull the wheel on the bad axle side,remove the diff. cover,
remove the small pin holding the large pin in,slide the big pin out ,push the axle in from the wheel end,remove the c-clip in the axle and slide it out.
Would be wise to change the seal at the end af the axle tube at the same time. Slide the new axle in ,put the c-clip in the axle ,push it back in the carrier and reinstall the large pin and keeper pin,"Right Stuff" sealer makes a good cover gasket,3/8 drive for the fill plug,some gear iol and you're done,,not a bad job,no special tools required.

Feb 23, 2012 | 2002 GMC Sierra 1500

1 Answer

Spider gear grinding gone in differential. should all parts be replaced including axles? Happened on highway a high speed.


If the splines on the axles are damaged I would recommend changing them. Another alternative is to change the complete rear end , used from a wrecking yard.

Jan 27, 2011 | 2002 GMC Sierra 1500

1 Answer

Need diagram to repair 2003 GMC Sierra spider gears in rear differential two wheel drive 1500


The bolts that hold everything in once out is very easy to replace. It islike removing a big turkey from the ovenwith the up most care.. The only trick is to remov the screw inside the pin holding the side gears in place which is inside the carrier housing

Jun 02, 2010 | 2003 GMC Sierra 1500

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Rear-end grinding noise in 1993 GMC Sierra 1500


your description sounds like the gears inside the the same differential you just replaced.

Oct 13, 2009 | 1993 GMC Sierra K1500

1 Answer

2004 gmc sierra rear differential


remove cover.take off back wheels and calipers (or drums).turn differential to where you see small bolt/pin (5/16) horizontally (same direction as axles)on right side of differential.remove bolt/pin.A large pin (about 5"long 3/4"diameter) should slide out differential with ease ( you may have to tap one side of the large pin).turn differential to completely remove large pin.turn differential so you can see in the view window.push each axles in (they'll go in about 1 1/2"each) You may hear one of the axle C-clips fall.If not use a small telescoping magnet to remove the C-clips from the axles through the differential window.pull each axle out about 10"so they are out of the diff.Now remove the cap bolts(4-5/8"bolts) and remove the caps(mark the caps so they go in excactly the way they came out.be careful the diff might fall out.If not you may have to use a long bar or 2x4 to wedge and pry the differential out. Have a basket/crate w/rags in it to catch the diff.TIP:If you are removing the ring gear from the diff, the bolts are left handed bolts meaning you have to turn them clockwise to loosen and counter clockwise to tighten ; )

Sep 15, 2009 | 2004 GMC Sierra

2 Answers

Factory radio wiring color codes


Here ya go. enjoy!
2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the center console.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

May 14, 2009 | 2002 GMC Sierra 1500

2 Answers

2002 gmc sierra denali rear axle noies


I have a 2002 Sierra Denali, and when it was only two years old, I began having the same issue that it sounds like you guys are describing. Luckily, I had opted for the extended warranty, because it turns out that the lube "specialists" at Wally-World had topped off my rear differential with standard rear-end oil. I turns out that the Denali's differential has a special "clutch pack", as they called it, that requires a secial, senthetic (aka: very expensive) lubricant. The **** WalMart added contaminated the diffy's oil, and caused the clutch pack to fail.... basically it started locking the rear axles, and not allowing one side to rotate at a different speed than the other, as is required in turning.
Well, it took the dealer nearly a month to acquire the neccesary parts for the repair, and as for the cost? Only a minimal deductible, and the dealer assured me that the $1800 extended warranty had paid for itself.... nearly twice!!!
WORDS OF ADVICE: If you own a Denali with AWS, Always instruct the lube guys not to touch your rear differntial! And have your certified GM mechanic check it at recommended intervals.

Jul 30, 2008 | 2002 GMC Denali

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