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Mechanical Maintenance: Break-in / Oil & Fluids / Servicing Discussions on mechanical maintenance and servicing of your Camaro

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Old 11-22-2013, 10:26 PM   #1
TannerJPowell
 
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SS Limited slip diff fluid part numbers and picture

Picked up some fluid today to do a drain and fill on the diff.

This is the fluid recommended in the tsb for rear differential popping (tsb PI-0137A).

The part numbers have been revised by GM since that tsb and they are now:

1 qt. SAE 75W-90 SYNTHETIC AXLE LUBRICANT - 88900401
4 oz. LIMITED SLIP AXLE LUBRICANT ADDITIVE - 88900330

The best part!, it's grape scented! But don't try to smell it because it's an irritant to everything.
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Old 11-23-2013, 06:41 AM   #2
SSMickey
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Unless they have changed the TSB or issued another one I'm not aware of, your fluid is the old stuff. The fluid called for in the TSB is/was the factory ZL-1 fluid with the friction modifier already added. P/N on my bottle is 1#88862624.
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Old 11-23-2013, 04:21 PM   #3
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If you don't have the updated seals don't you have to use the old stuff and add the modifier?

But I think you're right, the latest revision of the tsb says to replace the seals too?

My '12 was manufactured in mid to late 2011. I'm assuming it has the old seals... but I could be wrong?

Tsb:
PI0137A: Rear Axle Chatter Type Noise on Low Speed Turns - (Feb 24, 2011)

Subject:

Rear Axle Chatter Type Noise on Low Speed Turns

Models:

2010-2011 Chevrolet Camaro Equipped with Limited-Slip Differential (RPO G80)
--------------------------------------------------------------------------------

This PI is being revised to add the 2011 model year. Please discard PI0137.

--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern

Some customers may comment on a chatter-type noise from the rear of the vehicle while making low speed turns.

This condition may be caused by a slip/stick of the posi-traction clutch plates. As the plates slip and stick, a jumping or jerking feel occurs, accompanied by a chatter noise.

Recommendation/Instructions

Important: Prior to adding the limited-slip axle additive, the bottle MUST be shaken vigorously for at least one minute to mix the additive thoroughly, then immediately poured into the differential.

Drain and refill the rear differential with new fluid, GM P/N 89021677 (in Canada, use P/N 89021678) and additive, GM P/N 1052358 (in Canada, use P/N 992694). Refer to the Differential Oil Replacement procedure in SI.

Once the differential fluid has been changed, the vehicle must be driven in eight tight figure eight maneuvers to heat the fluid and allow the additive to be worked into the clutch plates
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Old 11-23-2013, 05:45 PM   #4
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Correct, the newest version, states to replace the seals and fill with the LS Gear Oil, which is the part number in my post above. Something about seal incompatibility and the new oil. The LS oil has the friction modifier already in it. We did this TSB to my diff and the noise went away. I'm not sure what the new seal part number is. A lot of people have had good luck with just adding more friction modifier to the diff. I believe some were adding an extra bottle.
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Old 01-12-2014, 07:20 AM   #5
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Replacing the seals is a breeze considering what Dodge did to the Ram trucks in 1998. They changed the metal alloy in the ring and pinion gears and greatly lowered the oil viscosity. Right after my 50,000 mile warranty went out, the rear howled like crazy. I had to spend $840 to replace the screwed up gears. No recall so I had to eat the repair costs.
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Old 01-12-2014, 10:55 AM   #6
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Use Dexron LS like I did. Same seals and no leaks.
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Old 01-12-2014, 10:59 AM   #7
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Quote:
Originally Posted by Snidely Whiplash View Post
Replacing the seals is a breeze considering what Dodge did to the Ram trucks in 1998. They changed the metal alloy in the ring and pinion gears and greatly lowered the oil viscosity. Right after my 50,000 mile warranty went out, the rear howled like crazy. I had to spend $840 to replace the screwed up gears. No recall so I had to eat the repair costs.
which is likely why you're driving a chevy today. i had my entire exhaust manifold back replaced because of the muffler baffels. no hassels.....
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