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Old 11-12-2009, 11:10 AM   #1
remist17
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Looking for a diagram of front Differential

I am trying to deside if I can try and tackle replacing bearings in the front dif on my 93 Silverado. The local shop wants at least $2000 to replace bearings only. More if there is additional damage.

I have humm i posted about that I am trying to pin point. Will be rotating tires and checking wheel bearings this weekend. If that doesnt fix it its most likely the dif that shows some wet spots.

Any help is appreciated. I never opened a front differential before and special tools needed to replace/
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Old 11-14-2009, 09:35 AM   #2
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Re: Looking for a diagram of front Differential

TTT

Can anyone help?
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Old 11-14-2009, 07:55 PM   #3
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Re: Looking for a diagram of front Differential

I assume that it's independent front suspension? $2,000 seems outrageous to me...
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Old 11-14-2009, 10:09 PM   #4
powerdriver 1958
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Re: Looking for a diagram of front Differential

Quote:
Originally Posted by remist17 View Post
. I never opened a front differential before and special tools needed to replace/
Yes sir special tools are needed.If you have never been into one you need help.Maybe you can find some that tackled this job before and is willing to help.

Have you checked to see if the bearing noise might be a wheel bearing?

if the carrier bearings or pinion bearings need replaced this is one of the tools needed.
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Old 11-14-2009, 10:39 PM   #5
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Re: Looking for a diagram of front Differential

I see in another post that you are talking about wheel bearings noise, and you may be on to something.If the 4 wheel is not in use and is working right it wont be turning.That would leave the wheel bearings.
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Old 11-16-2009, 11:14 AM   #6
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Re: Looking for a diagram of front Differential

Quote:
Originally Posted by powerdriver 1958 View Post
I see in another post that you are talking about wheel bearings noise, and you may be on to something.If the 4 wheel is not in use and is working right it wont be turning.That would leave the wheel bearings.
I put the truck up on the lift and just turned the wheels by hand. The drivers side were the axel (CV) goes into the diff there was a clicking noise. Thats were the issue is. So I am not thinking wheel bearing but the $$$$$$ Dif $$$$
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Old 11-16-2009, 10:09 PM   #7
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Re: Looking for a diagram of front Differential

Maybe just the inside CV joint is on its way out? Dry/damaged CV joints will click when you turn them.. just something else to look at that may be a bit cheaper to fix.
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Old 11-17-2009, 06:43 AM   #8
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Re: Looking for a diagram of front Differential

Quote:
Originally Posted by mickman77 View Post
Maybe just the inside CV joint is on its way out? Dry/damaged CV joints will click when you turn them.. just something else to look at that may be a bit cheaper to fix.

Thats a good point I had not thought of that. How far into the diff case does the CV Axel go? This clicking noise is not far inside the drivers side case.

When the truck is not in 4 wheel drive the diff does not move right? Only the axels move so they slip or not engaged in the differential?
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Old 11-17-2009, 11:19 AM   #9
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Re: Looking for a diagram of front Differential

If you are just looking for a schematic diagram to decide if you want to tackle this project, you might try one of the parts house websites. O'reillys or AutoZone have vehicle repair guides that walk you through step by step.
The guides are not available on "every" repair but you might check.
I have used them a couple times to help me re-assemble when I took a few days off from a project, came back, and couldn't remember the assembly order.
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Old 11-17-2009, 04:50 PM   #10
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Re: Looking for a diagram of front Differential

Quote:
Originally Posted by remist17 View Post
Thats a good point I had not thought of that. How far into the diff case does the CV Axel go? This clicking noise is not far inside the drivers side case.

When the truck is not in 4 wheel drive the diff does not move right? Only the axels move so they slip or not engaged in the differential?
Sure sounds like a CV joint to me. You typically will not get a “click” from a differential problem.

No, the differential carrier itself is not moving until you pull on the lever and the front axle actuator receives a signal from the switch on the tcase to move the fork and engage the front differential (item 14 in the diagram). This is basically, a more modern and complicated and less reliable way of doing the same job as the manual locking hubs used to do on the trusty old trucks. However, the CV's move all the time.

Here is the diagram you were looking for.
(1) Front Drive Axle Inner Shaft
(2) Front Drive Axle Inner Shaft Seal
(3) Front Drive Axle Inner Axle Shaft Bearing
(4) Front Drive Axle Inner Shaft Housing
(5) Front Drive Axle Clutch Gear Thrust Washer
(6) Front Drive Axle Clutch Gear
(7) Front Drive Axle Inner Shaft Retaining Ring
(8) Front Drive Axle Clutch Sleeve
(9) Front Drive Axle Clutch Shim
(10) Front Drive Axle Actuator
(11) Front Drive Axle Inner Shaft Housing Bolt
(12) Front Drive Axle Clutch Fork Shaft
(13) Front Drive Axle Clutch Fork Outer Spring
(14) Front Drive Axle Clutch Fork
(15) Front Drive Axle Clutch Shaft Retaining Ring
(16) Front Drive Axle Clutch Fork Inner Spring
(17) Front Drive Axle Clutch Shaft Bearing
(18) Front Drive Axle Clutch Shaft
(19) Front Differential Carrier Bolt
(20) Front Differential Carrier
(21) Front Differential Carrier Half Location Pin
(22) Front Differential Case Bearing
(23) Front Differential Bearing Adjuster Nut
(24) Front Differential Bearing Adjuster Nut Sleeve
(25) Front Differential Side Bearing Cup
(26) Differential Ring Gear Bolt
(27) Front Differential Side Bearing
(28) Front Differential Pinion Gear Shaft
(29) Front Differential Case
(30) Differential Pinion Gear Shaft Lock Bolt
(31) Differential Side Bearing
(32) Differential Side Bearing Cup
(33) Front Differential Ring Gear
(34) Front Differential Half Carrier Location Pin
(35) Front Differential Bearing Adjuster Nut Lock
(36) Differential Pinion Gear
(37) Differential Pinion Gear Thrust Washer
(38) Differential Side Gear Thrust Washer
(39) Differential Side Gear
(40) Differential Pinion Gear
(41) Differential Pinion Gear Thrust Washer
(42) Front Differential Side Gear Spacer
(43) Front Differential Side Gear
(44) Front Differential Side Gear Thrust Washer
(45) Front Differential Drive Pinion Gear
(46) Differential Drive Pinion Gear Bearing Shim
(47) Front Differential Drive Pinion Gear Inner Bearing
(48) Front Differential Drive Pinion Gear Inner Bearing Cup
(49) Front Differential Drive Pinion Gear Bearing Spacer
(50) Front Differential Carrier Bushing
(51) Front Differential Carrier
(52) Front Differential Bearing Adjuster Nut Lock
(53) Bolt
(54) Front Differential Drive Pinion Gear Yoke Nut
(55) Front Differential Drive Pinion Gear Thrust Washer
(56) Front Differential Drive Pinion Gear Yoke
(57) Front Differential Drive Pinion Gear Bearing Dirt Deflector
(58) Front Differential Drive Pinion Gear Seal
(59) Front Differential Drive Pinion Gear Outer Bearing Cup
(60) Front Differential Drive Pinion Gear Outer Bearing
(61) Front Differential Carrier Bushing
(62) Differential Bearing
(63) Front Differential Bearing Adjuster O-Ring Seal
(64) Front Differential Bearing Adjuster
(65) Front Drive Axle Inner Shaft Seal
(66) Front Drive Axle Inner Shaft Retaining Ring
(67) Front Drive Axle Inner Shaft
(68) Front Differential Carrier Vent
(69) Fuel and Oil Resistant Hose
(70) Clamp
(71) Front Differential Carrier Vent Hose Connector
(72) Front Differential Carrier Oil Drain Plug
(73) Front Differential Carrier Oil Drain Plug Washer
(74) Front Differential Carrier Oil Fill Plug
(75) Front Differential Carrier Oil Fill Plug Washer
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Old 11-18-2009, 09:05 AM   #11
remist17
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Re: Looking for a diagram of front Differential

Quote:
Originally Posted by DirtyLarry View Post
Sure sounds like a CV joint to me. You typically will not get a “click” from a differential problem.

No, the differential carrier itself is not moving until you pull on the lever and the front axle actuator receives a signal from the switch on the tcase to move the fork and engage the front differential (item 14 in the diagram). This is basically, a more modern and complicated and less reliable way of doing the same job as the manual locking hubs used to do on the trusty old trucks. However, the CV's move all the time.

Here is the diagram you were looking for.
(1) Front Drive Axle Inner Shaft
(2) Front Drive Axle Inner Shaft Seal
(3) Front Drive Axle Inner Axle Shaft Bearing
(4) Front Drive Axle Inner Shaft Housing
(5) Front Drive Axle Clutch Gear Thrust Washer
(6) Front Drive Axle Clutch Gear
(7) Front Drive Axle Inner Shaft Retaining Ring
(8) Front Drive Axle Clutch Sleeve
(9) Front Drive Axle Clutch Shim
(10) Front Drive Axle Actuator
(11) Front Drive Axle Inner Shaft Housing Bolt
(12) Front Drive Axle Clutch Fork Shaft
(13) Front Drive Axle Clutch Fork Outer Spring
(14) Front Drive Axle Clutch Fork
(15) Front Drive Axle Clutch Shaft Retaining Ring
(16) Front Drive Axle Clutch Fork Inner Spring
(17) Front Drive Axle Clutch Shaft Bearing
(18) Front Drive Axle Clutch Shaft
(19) Front Differential Carrier Bolt
(20) Front Differential Carrier
(21) Front Differential Carrier Half Location Pin
(22) Front Differential Case Bearing
(23) Front Differential Bearing Adjuster Nut
(24) Front Differential Bearing Adjuster Nut Sleeve
(25) Front Differential Side Bearing Cup
(26) Differential Ring Gear Bolt
(27) Front Differential Side Bearing
(28) Front Differential Pinion Gear Shaft
(29) Front Differential Case
(30) Differential Pinion Gear Shaft Lock Bolt
(31) Differential Side Bearing
(32) Differential Side Bearing Cup
(33) Front Differential Ring Gear
(34) Front Differential Half Carrier Location Pin
(35) Front Differential Bearing Adjuster Nut Lock
(36) Differential Pinion Gear
(37) Differential Pinion Gear Thrust Washer
(38) Differential Side Gear Thrust Washer
(39) Differential Side Gear
(40) Differential Pinion Gear
(41) Differential Pinion Gear Thrust Washer
(42) Front Differential Side Gear Spacer
(43) Front Differential Side Gear
(44) Front Differential Side Gear Thrust Washer
(45) Front Differential Drive Pinion Gear
(46) Differential Drive Pinion Gear Bearing Shim
(47) Front Differential Drive Pinion Gear Inner Bearing
(48) Front Differential Drive Pinion Gear Inner Bearing Cup
(49) Front Differential Drive Pinion Gear Bearing Spacer
(50) Front Differential Carrier Bushing
(51) Front Differential Carrier
(52) Front Differential Bearing Adjuster Nut Lock
(53) Bolt
(54) Front Differential Drive Pinion Gear Yoke Nut
(55) Front Differential Drive Pinion Gear Thrust Washer
(56) Front Differential Drive Pinion Gear Yoke
(57) Front Differential Drive Pinion Gear Bearing Dirt Deflector
(58) Front Differential Drive Pinion Gear Seal
(59) Front Differential Drive Pinion Gear Outer Bearing Cup
(60) Front Differential Drive Pinion Gear Outer Bearing
(61) Front Differential Carrier Bushing
(62) Differential Bearing
(63) Front Differential Bearing Adjuster O-Ring Seal
(64) Front Differential Bearing Adjuster
(65) Front Drive Axle Inner Shaft Seal
(66) Front Drive Axle Inner Shaft Retaining Ring
(67) Front Drive Axle Inner Shaft
(68) Front Differential Carrier Vent
(69) Fuel and Oil Resistant Hose
(70) Clamp
(71) Front Differential Carrier Vent Hose Connector
(72) Front Differential Carrier Oil Drain Plug
(73) Front Differential Carrier Oil Drain Plug Washer
(74) Front Differential Carrier Oil Fill Plug
(75) Front Differential Carrier Oil Fill Plug Washer

GREAT THANKS

I am goingto try and replace the CV first. Do you think I need to replace both?
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2013 Chevy Silverado, Z71, 5.3L, 4 door
2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40

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